e10vq
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
 
 
Form 10-Q
 
 
     
(Mark One)    
þ
  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
    For the quarterly period ended July 28, 2006
or
o
  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
    For the transition period from            to
 
Commission file number 0-27130
 
Network Appliance, Inc.
(Exact name of registrant as specified in its charter)
 
     
Delaware   77-0307520
(State or other jurisdiction of
incorporation or organization)
  (IRS Employer
Identification No.)
 
495 East Java Drive,
Sunnyvale, California 94089
(Address of principal executive offices, including zip code)
 
 
Registrant’s telephone number, including area code:
(408) 822-6000
 
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes þ     No o
 
Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act.
Large accelerated filer þ     Accelerated filer o     Non-accelerated filer o
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes o     No þ
 
Number of shares outstanding of the registrant’s common stock, $0.001 par value, as of the latest practicable date.
 
     
Class
 
Outstanding at August 25, 2006
 
Common Stock   372,415,379
 


 

 
TABLE OF CONTENTS
 
             
        Page
        No.
 
  Condensed Consolidated Financial Statements (Unaudited)   3
    Condensed Consolidated Balance Sheets as of July 28, 2006 (Unaudited) and April 30, 2006   3
    Condensed Consolidated Statements of Income for the quarter ended July 28, 2006 and July 29, 2005 (Unaudited)   4
    Condensed Consolidated Statements of Cash Flows for the quarter ended July 28, 2006 and July 29, 2005 (Unaudited)   5
    Notes to Condensed Consolidated Financial Statements (Unaudited)   6
  Management’s Discussion and Analysis of Financial Condition and Results of Operations   23
  Quantitative and Qualitative Disclosures About Market Risk   42
  Controls and Procedures   43
 
  Legal Proceedings   44
  Risk Factors   44
  Unregistered Sales of Equity Securities and Use of Proceeds   55
  Defaults Upon Senior Securities   55
  Submission of Matters to a Vote of Security holders   56
  Other Information   56
  Exhibits   56
  59
 EXHIBIT 31.1
 EXHIBIT 31.2
 EXHIBIT 32.1
 EXHIBIT 32.2
 
TRADEMARKS
 
© 2006 Network Appliance, Inc. All rights reserved. Specifications subject to change without notice. NetApp, the Network Appliance logo, Data ONTAP, NearStore, NetCache, and Spinnaker Networks are registered trademarks and Network Appliance, FlexClone, FlexVol, and StoreVault are trademarks of Network Appliance, Inc. in the U.S. and other countries. Decru is a registered trademark of Decru, a NetApp company. All other brands or products are trademarks or registered trademarks of their respective holders and should be treated as such.


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PART I. FINANCIAL INFORMATION
 
Item 1.   Condensed Consolidated Financial Statements (Unaudited)
 
NETWORK APPLIANCE, INC.
 
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands)
 
                 
    July 28,
    April 30,
 
    2006     2006  
    (Unaudited)     (1)  
 
ASSETS
Current Assets:
               
Cash and cash equivalents
  $ 442,329     $ 461,256  
Short-term investments
    830,051       861,636  
Accounts receivable, net of allowances of $2,555 at July 28, 2006 and $2,380 at April 30, 2006
    376,920       415,295  
Inventories
    56,242       64,452  
Prepaid expenses and other assets
    41,140       43,536  
Short-term restricted cash and investments
    135,141       138,539  
Deferred income taxes
    48,496       48,496  
                 
Total current assets
    1,930,319       2,033,210  
Property and Equipment, net
    533,121       513,193  
Goodwill
    487,535       487,535  
Intangible Assets, net
    69,869       75,051  
Long-Term Restricted Cash and Investments
    96,632       108,371  
Other Assets
    63,193       43,605  
                 
    $ 3,180,669     $ 3,260,965  
                 
 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities:
               
Current portion of long-term debt
  $ 163,354     $ 166,211  
Accounts payable
    99,927       101,278  
Income taxes payable
    33,527       51,577  
Accrued compensation and related benefits
    90,979       129,636  
Other accrued liabilities
    65,122       69,073  
Deferred revenue
    433,599       399,388  
                 
Total current liabilities
    886,508       917,163  
Long-Term Debt
    108,780       133,789  
Long-Term Deferred Revenue
    309,611       282,149  
Long-Term Obligations
    4,943       4,411  
                 
Total liabilities
    1,309,842       1,337,512  
                 
Stockholders’ Equity:
               
Common stock (410,252 shares at July 28, 2006 and 407,994 shares at April 30, 2006)
    410       408  
Additional paid-in capital
    1,933,038       1,872,962  
Deferred stock compensation
          (49,266 )
Treasury stock (38,557 shares at July 28, 2006 and 31,996 shares at April 30, 2006)
    (1,037,983 )     (817,983 )
Retained earnings
    983,100       928,430  
Accumulated other comprehensive loss
    (7,738 )     (11,098 )
                 
Total stockholders’ equity
    1,870,827       1,923,453  
                 
    $ 3,180,669     $ 3,260,965  
                 
 
 
(1) Derived from the April 30, 2006 audited Consolidated Financial Statements included in the Annual Report on Form 10-K of Network Appliance, Inc. for fiscal year 2006.
 
See accompanying notes to unaudited condensed consolidated financial statements.


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NETWORK APPLIANCE, INC.
 
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
(In thousands, except per share amounts — unaudited)
 
                 
    Three Months Ended  
    July 28,
    July 29,
 
    2006     2005  
 
Revenues:
               
Product
  $ 465,611     $ 340,926  
Software Subscriptions
    74,830       53,704  
Service
    80,847       53,773  
                 
Total
    621,288       448,403  
                 
Cost of Revenues:
               
Cost of product
    187,965       131,499  
Cost of software subscriptions
    2,292       2,256  
Cost of service
    57,961       41,162  
                 
Total cost of revenues
    248,218       174,917  
                 
Gross margin
    373,070       273,486  
                 
Operating Expenses:
               
Sales and marketing
    195,518       137,814  
Research and development
    88,678       52,160  
General and administrative
    32,396       21,196  
Restructuring recoveries
    (74 )     (1,256 )
                 
Total operating expenses
    316,518       209,914  
                 
Income from Operations
    56,552       63,572  
Other Income (Expense), net:
               
Interest income
    16,656       9,048  
Interest expense
    (3,871 )     (48 )
Other income (expenses), net
    779       (224 )
Net gain on investments
          33  
                 
Total other income, net
    13,564       8,809  
                 
Income before Income Taxes
    70,116       72,381  
Provision for Income Taxes
    15,446       12,261  
                 
Net Income
  $ 54,670     $ 60,120  
                 
Net Income per Share:
               
Basic
  $ 0.15     $ 0.16  
                 
Diluted
  $ 0.14     $ 0.16  
                 
Shares Used in per Share Calculations:
               
Basic
    373,869       367,438  
                 
Diluted
    391,319       386,383  
                 
 
See accompanying notes to unaudited condensed consolidated financial statements.


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NETWORK APPLIANCE, INC.
 
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands — unaudited)
 
                 
    Three Months Ended  
    July 28,
    July 29,
 
    2006     2005  
 
         
Cash Flows from Operating Activities:
               
         
Net income
  $ 54,670     $ 60,120  
         
Adjustments to reconcile net income to net cash provided by operating activities:
               
         
Depreciation
    18,714       14,756  
         
Amortization of intangible assets
    4,686       2,671  
         
Amortization of patents
    495       495  
         
Stock compensation
    43,022       2,028  
         
Net loss (gain) on investments
          (33 )
         
Net loss on disposal of equipment
    81       404  
         
Allowance (reduction) for doubtful accounts
    144       (379 )
         
Deferred rent
    199       48  
         
Excess tax benefit from stock-based compensation
    (4,489 )      
         
Changes in assets and liabilities:
               
         
Accounts receivable
    38,187       57,892  
         
Inventories
    (520 )     (4,998 )
         
Prepaid expenses and other assets
    5,390       (3,997 )
         
Accounts payable
    (1,139 )     (2,691 )
         
Income taxes payable
    (6,914 )     9,648  
         
Accrued compensation and related benefits
    (38,964 )     (32,418 )
         
Other accrued liabilities
    (10,980 )     (1,302 )
         
Deferred revenue
    61,982       36,716  
                 
         
Net cash provided by operating activities
    164,564       138,960  
                 
         
Cash Flows from Investing Activities:
               
         
Purchases of investments
    (874,416 )     (222,787 )
         
Redemptions of investments
    906,423       213,977  
         
Redemptions of restricted investments
    16,322        
         
(Increase) decrease in restricted cash
    252       (1,504 )
         
Purchases of property and equipment
    (23,056 )     (33,538 )
         
Proceeds from sales of investments
    17       62  
         
Purchases of equity securities
    (1,183 )     (275 )
         
Purchase of business, net of cash acquired
          (11,831 )
                 
         
Net cash provided by (used) in investing activities
    24,359       (55,896 )
                 
         
Cash Flows from Financing Activities:
               
         
Proceeds from sale of common stock related to employee stock transactions
    36,831       50,763  
         
Excess tax benefit from stock-based compensation
    4,489        
         
Repayment of debt
    (27,866 )      
         
Tax withholding payments reimbursed by restricted stock
    (980 )     (419 )
         
Repurchases of common stock
    (220,000 )     (95,543 )
                 
         
Net cash used in financing activities
    (207,526 )     (45,199 )
                 
         
Effect of Exchange Rate Changes on Cash and Cash Equivalents
    (324 )     178  
         
Net (Decrease) Increase in Cash and Cash Equivalents
    (18,927 )     38,043  
         
Cash and Cash Equivalents:
               
         
Beginning of period
    461,256       193,542  
                 
         
End of period
  $ 442,329     $ 231,585  
                 
         
Noncash Investing and Financing Activities:
               
         
Conversion of evaluation inventory to fixed assets
  $ 9,228     $ 3,638  
         
Acquisition of property and equipment on account
  $ 6,524     $ 3,561  
         
Options assumed for acquired business
  $     $ 2,314  
         
Supplemental cash flow information:
               
         
Income taxes paid
  $ 22,453     $ 2,014  
         
Interest paid on debt
  $ 2,666     $  
 
See accompanying notes to unaudited condensed consolidated financial statements.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Dollar and share amounts in thousands, except per-share data)
(Unaudited)
 
1.   The Company
 
Based in Sunnyvale, California, Network Appliance was incorporated in California in April 1992 and reincorporated in Delaware in November 2001. Network Appliance, Inc. is a leading supplier of enterprise storage and data management software and hardware products and services. Our solutions help global enterprises meet major information technology challenges such as managing storage growth, assuring secure and timely information access, protecting data, and controlling costs by providing innovative solutions that simplify the complexity associated with managing corporate data. Network Appliancetm solutions are the data management and storage foundation for many of the world’s leading corporations and government agencies. In the following notes to our interim condensed consolidated financial statements, Network Appliance is also referred to as “we,” “our,” and “us.”
 
2.   Condensed Consolidated Financial Statements
 
The accompanying interim unaudited condensed consolidated financial statements have been prepared by Network Appliance, Inc. without audit and reflect all adjustments, consisting only of normal recurring adjustments which are, in the opinion of management, necessary for a fair presentation of our financial position, results of operations, and cash flows for the interim periods presented. The statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“generally accepted accounting principles”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10-01 of Regulation S-X. Accordingly, they do not include all information and footnotes required by generally accepted accounting principles for annual consolidated financial statements. Certain prior period balances have been reclassified to conform with the current period presentation.
 
We operate on a 52-week or 53-week year ending on the last Friday in April. For presentation purposes we have indicated in the accompanying interim unaudited condensed consolidated financial statements that our fiscal year end is April 30. The first quarters of fiscal 2007 and 2006 were both 13-week fiscal periods.
 
These financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended April 30, 2006. The results of operations for the quarter ended July 28, 2006 are not necessarily indicative of the operating results to be expected for the full fiscal year or future operating periods.
 
In fiscal 2006, we began to separately disclose software subscriptions revenue and cost of software subscriptions revenue in our income statements. All prior periods have been revised to reflect this presentation. Such balances were previously included as a part of product revenue and cost of product revenue and disclosed separately in our footnotes. In the first quarter of fiscal 2007, we further reclassified some third party software subscription royalties to cost of software subscriptions ($2,001 and $1,863 at July 28, 2006 and July 29, 2005, respectively). Such prior period amounts have been reclassified from cost of product revenue in the accompanying interim financial statements to conform to the current period classification. This reclassification did not change previously reported total revenues, total cost of revenues, net income and cash flow.
 
3.   Significant Accounting Policies and Use of Estimates
 
Revenue Recognition:  We apply the provisions of Statement of Position (“SOP”) No. 97-2, Software Revenue Recognition, and related interpretations to our product sales, both hardware and software, because our software is essential to the performance of our hardware. We recognize revenue when:
 
  •  Persuasive evidence of an arrangement exists.  It is our customary practice to have a purchase order and/or contract prior to recognizing revenue on an arrangement from our end users, customers, value-added resellers, or distributors.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
  •  Delivery has occurred.  Our product is physically delivered to our customers, generally with standard transfer terms such as FOB origin. We typically do not allow for restocking rights with any of our value-added resellers or distributors. Products shipped with acceptance criteria or return rights are not recognized as revenue until all criteria are achieved. If undelivered products or services exist that are essential to the functionality of the delivered product in an arrangement, delivery is not considered to have occurred.
 
  •  The fee is fixed or determinable.  Arrangements with payment terms extending beyond our standard terms, conditions and practices are not considered to be fixed or determinable. Revenue from such arrangements is recognized as the fees become due and payable. We typically do not allow for price-protection rights with any of our value-added resellers or distributors.
 
  •  Collection is probable.  Probability of collection is assessed on a customer-by-customer basis. Customers are subjected to a credit review process that evaluates the customers’ financial position and ultimately their ability to pay. If it is determined at the outset of an arrangement that collection is not probable based upon our review process, revenue is recognized upon cash receipt.
 
Our multiple element arrangements include our systems and generally may also include one or more of the following undelivered elements: installation services, software subscriptions, premium hardware maintenance and storage review services. If the arrangement contains both software-related and non-software related elements, we allocate revenue to the non-software elements based on objective and reliable evidence of fair value in accordance with EITF 00-21, Revenue Arrangements with Multiple Deliverables. Non-software elements are items for which the functionality of the software is not essential to its performance; the non-software related elements in our arrangements may consist of storage optimization reviews (which are only sold within a bundled offering that also contains software-related services), technical consulting and/or installation services. For undelivered software-related elements, we apply the provisions of SOP 97-2 and determine fair value of these undelivered software-related elements based on vendor specific objective evidence which for us consists of the prices charged when these services are sold separately.
 
For arrangements with multiple elements, we recognize as revenue the difference between the total arrangement price and the greater of fair value or stated price for any undelivered elements (“the residual method”).
 
Our software subscriptions entitle our customers to receive unspecified product upgrades and enhancements on a when-and-if-available basis, bug fixes, and patch releases. Premium hardware maintenance services include contracts for technical support and minimum response times. Revenue from software subscriptions and premium hardware maintenance services is recognized ratably over the contractual term, generally one to three years; standard hardware warranty costs are considered an obligation under SFAS No. 5, Accounting for Contingencies and are expensed to cost of revenues when revenue is recognized. We also offer extended service contracts (which may include standard warranty as well as premium hardware maintenance) at the end of the warranty term; revenues from these contracts are recognized ratably over the contract term. When storage optimization reviews are sold as a bundled element with our software subscriptions and premium hardware maintenance services, the revenue is recognized ratably over the contract term. We typically sell technical consulting services separately from any of our other revenue elements, either on a time and materials basis or for fixed price standard projects; we recognize revenue for these services as they are performed. Revenue from hardware installation services is recognized at the time of delivery and any remaining costs are accrued, as the remaining undelivered services are considered to be inconsequential and perfunctory.
 
We record reductions to revenue for estimated sales returns at the time of shipment. Sales returns are estimated based on historical sales returns, changes in customer demand, current trends, and our expectations regarding future experience. Reductions to revenue associated with sales returns include consideration of historical sales levels, the timing and magnitude of historical sales returns and a projection of this experience into the future. We monitor and analyze the accuracy of sales returns estimates by reviewing actual returns and adjust them for future expectations to


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

determine the adequacy of our current and future reserve needs. If actual future returns and allowances differ from past experience, additional allowances may be required.
 
Stock-based Compensation:  We estimate the fair value of stock options using the Black-Scholes valuation model, consistent with the provisions of the Financial Accounting Standards Board’s (FASB) SFAS No. 123 (revised 2004), Share-Based Payment (SFAS No. 123R) as interpreted by Staff Accounting Bulletin (SAB) No. 107. Option-pricing models require the input of highly subjective assumptions, including the expected term of options, the determination of risk-free interest rates, and the expected price volatility of the stock underlying such options. In addition, we estimate the number of share-based awards that will be forfeited due to employee turnover based on historical trends. Finally, we capitalize into inventory a portion of the periodic stock-based compensation expense that relates to employees working in manufacturing activities.
 
In November 2005, FASB issued Financial Statement Position, or FSP, on SFAS No. 123R-3 (FSP No. 123R-3), Transition Election Related to Accounting for Tax Effects of Share-Based Payment Awards.  Effective upon issuance, FSP No. 123R-3 provides for an alternative transition method for calculating the tax effects of stock-based compensation expense pursuant to SFAS No. 123R. The alternative transition method provides simplified approaches to establish the beginning balance of a tax benefit pool comprised of the additional paid-in capital, or APIC, related to the tax effects of employee stock-based compensation expense, and to determine the subsequent impact on the APIC tax benefit pool and the statement of cash flows of stock-based awards that were outstanding upon the adoption of SFAS No. 123R. Because we have not made the election to use the simplified approach to establish the beginning balance of the tax benefit pool, the tax effects of stock-based compensation expense were calculated as if SFAS 123 had always been applied for recognition purposes. For awards that are both fully vested and partially vested as of the date of adoption, the financing cash inflow is the excess tax benefit computed as if Statement 123 had always been applied for recognition purposes.
 
Use of Estimates — The preparation of the condensed consolidated financial statements are in conformity with generally accepted accounting principles and requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Such estimates include, but are not limited to, revenue recognition and allowances; valuation of goodwill and intangibles; accounting for income taxes; inventory reserves and write-down; restructuring accruals; impairment losses on investments; accounting for stock-based compensation; and loss contingencies. Actual results could differ from those estimates.
 
4.   Stock-based Compensation
 
Effective May 1, 2006, we adopted SFAS No. 123R, Share-Based Payments (SFAS No. 123R), which provides guidance on accounting for stock-based awards for employee services. We elected to adopt the modified prospective method, and accordingly we were not required to restate our prior period financial statements.
 
Prior to the adoption of SFAS No. 123R
 
Prior to the adoption of SFAS No. 123R, stock-based compensation expense had not been recognized in our consolidated statement of operations, other than those related to acquisitions. As a result of adopting SFAS No. 123R, pre-tax stock-based compensation expense recorded for the three months ended July 28, 2006 of $43,022 was related to employee stock options, restricted stock units (RSUs), restricted stock awards (RSAs), and employee stock purchases under our Employee Stock Purchase Plan. Pre-tax stock-based compensation expense of $2,028 for the three months ended July 29, 2005, which we recorded under APB No. 25, was related to RSUs, RSAs, and options assumed from acquisitions. As a result of adoption of SFAS No. 123R, our income from operations and net income for the quarter ended July 28, 2006, were $37,904 and $32,344 lower, respectively, than they would have been if we had continued to account for share-based compensation under APB No. 25. Basic and diluted earnings per share for the quarter ended July 28, 2006, were each $0.08 lower than they would have been if


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

we had continued to account for share-based compensation under APB No. 25. We currently estimate that the impact of adopting SFAS No. 123R on our fiscal year ending April 30, 2007 will be between $0.33 and $0.40 per share.
 
As required by SFAS No. 123R, we eliminated the unamortized deferred stock compensation of $49,266 on May 1, 2006. Our common stock and additional paid-in capital was also reduced by the same amount and had been included in the Stockholders Equity of our Consolidated Balance Sheets as of April 30, 2006.
 
Had compensation expense been determined based on the fair value at the grant date for awards, consistent with the provisions of SFAS No. 123, our pro forma net income and pro forma net income per share for the three months ended July 29, 2005, would be as follows:
 
         
    Three Months Ended
 
    July 29, 2005  
 
Net income as reported
  $ 60,120  
Add: stock based employee compensation expense included in reported net income under APB No. 25, net of related tax effects
    1,217  
Deduct: total stock based compensation determined under fair value based method for all awards, net of related tax effects
    (24,648 )
         
Pro forma net income
  $ 36,689  
         
Basic net income per share, as reported
  $ 0.16  
         
Diluted net income per share, as reported
  $ 0.16  
         
Basic net income per share, pro forma
  $ 0.10  
         
Diluted net income per share, pro forma
  $ 0.09  
         
 
SFAS No. 123R requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. In our pro forma information required under SFAS No. 123 for the periods prior to fiscal 2007, we reflect cancellations and forfeitures due to employee terminations as they occur.
 
SFAS No. 123R stock compensation expense
 
The stock-based compensation expenses included in the Condensed Consolidated Statement of Income for the three months ended July 28, 2006 are as follows:
 
         
    Three Months Ended
 
    July 28, 2006  
 
Cost of product revenue
  $ 670  
Cost of service revenue
    2,634  
Sales and marketing
    18,717  
Research and development
    13,868  
General and administrative
    7,133  
         
Total stock-based compensation expense before income taxes
    43,022  
Income taxes
    (7,834 )
         
Total stock-based compensation expense after income taxes
    35,188  
         


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
The following table summarizes stock-based compensation associated with each type of award:
 
         
    Three Months Ended
 
    July 28, 2006  
 
Employee stock options and awards
  $ 40,123  
Employee stock purchase plan (“ESPP”)
    3,383  
Amounts capitalized in inventory
    (484 )
         
Total stock-based compensation expense before income taxes
    43,022  
Income taxes
    (7,834 )
         
Total stock-based compensation expense after income taxes
    35,188  
         
 
In conjunction with the adoption of SFAS No. 123R, we changed our accounting policy of attributing the fair value of stock-based compensation to expense from the accelerated multiple-option approach provided by APB No. 25, as allowed under SFAS No. 123, to the straight-line single-option approach. Compensation expense for all stock-based payment awards expected to vest that were granted on or prior to April 30, 2006 will continue to be recognized using the accelerated multiple-option method. Compensation expense for all stock-based payment awards expected to vest that were granted subsequent to April 30, 2006 is recognized on a straight-line basis under the single-option approach.
 
Income Tax Benefits Recorded in Stockholders Equity
 
For the quarter ended July 28, 2006 and July 29, 2005, the total income tax benefit associated with employee stock transactions was $29,987 and $16,289, respectively.
 
Income Tax Effects on Statements of Cash Flows
 
In accordance with SFAS No. 123R, we have presented tax benefits resulting from tax deductions in excess of the compensation cost recognized for those options as financing cash flows for the quarter ended July 28, 2006. Prior to the adoption of SFAS No. 123R, tax benefits of stock option exercises were presented as operating cash flows. Tax benefits, related to tax deductions in excess of the compensation cost recognized, of $4,489 presented as financing cash flows for the quarter ended July 28, 2006 would have been classified as operating cash flows if we had not adopted SFAS No. 123R.
 
Valuation Assumptions
 
In compliance with SFAS No. 123R, we estimated the fair value of stock options using the Black-Scholes model on the date of the grant. Assumptions used in the Black-Scholes valuation model were as follows:
 
                 
    Stock Options
    ESPP
 
    Three Months Ended
    Three Months Ended
 
    July 28, 2006     July 28, 2006  
 
Expected life in years(1)
    4.0       0.5  
Risk-free interest rate(2)
    4.97 %     5.02 %
Volatility(3)
    36 %     37 %
Expected dividend(4)
    0 %     0 %
 
(1) The expected life represented the period that our stock-based award was expected to be outstanding and was determined based on historical experience on similar awards.
 
(2) The risk-free interest rate was based upon U.S. Treasury bills with equivalent expected terms of our employee stock-based award.
 
(3) We used the implied volatility of traded options to estimate our stock price volatility. Prior to adoption of SFAS No. 123R, we estimated volatility based upon historical volatility rates as required by SFAS No. 123.
 
(4) The expected dividend was determined based on our history and expected dividend payouts.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
As required by SFAS No 123R, we estimate our forfeiture rates based on historical voluntary termination behavior.
 
Stock Options
 
A summary of the combined activity under our stock option plans and agreements is as follows:
 
                                         
    Outstanding Options              
                Weighted
    Weighted
       
    Options
          Average
    Average
    Aggregate
 
    Available
    Number
    Exercise
    Remaining
    Intrinsic
 
    for Grant     of Shares     Price     Contractual Term     Value  
 
Outstanding at April 30, 2006
    22,546       65,709     $ 26.08                  
Options Granted
    (3,993 )     3,993       32.23                  
RSUs Granted
    (3 )     3                        
Options Exercised
          (1,359 )     14.23                  
RSUs Exercised
          (40 )                      
Options Forfeitures and cancellations
    968       (968 )     41.60                  
RSUs Forfeitures and cancellations
    13       (13 )                      
                                         
Outstanding at July 28, 2006
    19,531       67,325     $ 26.48       6.14     $ 562,057  
                                         
Options vested and expected to vest at July 28, 2006
            64,427       26.72       0.46     $ 533,118  
Exercisable at July 28, 2006
            41,682       26.42       4.86     $ 442,251  
RSUs vested and expected to vest at July 28, 2006
            706             1.84     $ 21,048  
Exercisable at July 28, 2006
                               
 
The intrinsic value represents the difference between the exercise price of stock options and the market price of our stock on that day for all in-the-money options. The weighted-average fair value as of the grant date was $11.42. The total intrinsic value of options exercised were $26,382 and $61,382 for the quarter ended July 28, 2006 and July 29, 2005, respectively. We received $19,320 and $36,450 from the exercise of stock options for the quarter ended July 28, 2006 and July 29, 2005, respectively.
 
The following table summarizes our non-vested shares (restricted stock awards) as of July 28, 2006:
 
                 
          Weighted-Average
 
    Number of
    Grant-Date
 
    Shares     Fair Value  
 
Non-vested at April 30, 2006
    228     $ 27.58  
Awards granted
           
Awards vested
    (51 )   $ 20.49  
Awards canceled/expired/forfeited
           
                 
Non-vested at July 28, 2006
    177     $ 29.62  
                 
 
Although non-vested shares are legally issued, they are considered contingently returnable shares subject to repurchase by the Company when employees terminate their employment. The total fair value of shares vested during the quarter ended July 28, 2006 was $1,516. There was $26,044 of total unrecognized compensation as of


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

July 28, 2006 related to restricted stock awards. The unrecognized compensation will be amortized over a weighted-average period of 3.1 years.
 
The following table summarizes information about stock options outstanding under all option plans as of July 28, 2006:
 
                                         
    Options Outstanding              
          Weighted
                   
          Average
          Options Exercisable  
    Number
    Remaining
    Weighted
          Weighted
 
    Outstanding at
    Contractual
    Average
          Average
 
    July 28,
    Life
    Exercise
    Number
    Exercise
 
Range of Exercise Prices
  2006     (In Years)     Price     Exercisable     Price  
 
$   —  $     —
    798       1.93                    
  0.02      4.51
    4,310       2.79       3.08       3,672       3.58  
  4.80      9.99
    4,524       5.36       9.12       4,053       9.03  
 10.24     15.32
    7,593       4.48       13.25       7,499       13.27  
 15.71     20.16
    10,245       5.64       18.61       8,402       18.67  
 20.32     24.98
    11,027       7.40       22.60       5,704       22.38  
 25.64     29.83
    6,643       8.82       28.51       1,167       28.91  
 30.88     34.69
    12,174       7.74       32.28       2,957       31.83  
 36.71     46.53
    2,490       8.15       38.36       707       41.87  
 46.56     56.94
    4,522       3.82       53.54       4,522       53.54  
 58.00   122.19
    2,999       3.89       89.30       2,999       89.30  
                                         
$   —  $122.19
    67,325       6.14     $ 26.48       41,682     $ 26.42  
                                         
 
Employee Stock Purchase Plan
 
                                 
          Weighted
    Weighted
       
          Average
    Average
    Aggregate
 
    Number
    Exercise
    Remaining
    Intrinsic
 
    of Shares     Price     Contractual Term     Value  
 
Outstanding at July 28, 2006
    767     $ 27.63       0.34     $ 1,691  
Vested and expected to vest at July 28, 2006
    750     $ 27.63       0.34     $ 1,654  
 
The total intrinsic value of employee stocks purchases were $10,942 and $8,897 for the quarter ended July 28, 2006 and July 29, 2005, respectively. The compensation cost for options purchased under the ESPP plan was $3,383 for the period ended July 28, 2006. This compensation cost will be amortized on a straight-line basis over a weighted-average period of approximately 0.34 years.
 
The following table shows the shares issued, and their purchase price per share for the employee stock purchase plan for the six-month period ended May 31, 2006:
 
         
Purchase Date
    May 31, 2006  
Shares issued
    889  
Purchase price per share
  $ 19.69  
 
5.   Debt
 
On March 31, 2006, Network Appliance Global LTD. (“Global”), a subsidiary of the Company, entered into a loan agreement (the “Loan Agreement”), with the lenders and JPMorgan Chase Bank, National Association, as administrative agent. The Loan Agreement provides for term loan available in two tranches, a tranche of $220,000 (“Tranche A”) and a tranche of $80,000 (“Tranche B”), for an aggregate borrowing of $300,000. The proceeds of


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

the term loan have been used to finance a dividend from Global to the Company under the American Jobs Creation Act. The Tranche A term loan and Tranche B term loan, together with accrued and unpaid interest, are due in full on the maturity date of March 31, 2008. Loan repayments of $131,267 and $140,867 are due in fiscal 2007 and in fiscal 2008, respectively.
 
Interest for both the Tranche A and Tranche B term loan accrues at a floating rate based on the base rate in effect from time to time, plus a margin, which totaled 5.525% at July 28, 2006.
 
During the quarter ended July 28, 2006, we made a repayment of $27,866 on the term loan. The Tranche A term loan is secured by certain investments totaling $226,212 as of July 28, 2006 held by Global and the Tranche B term loan is secured by a pledge of accounts receivable by Global’s subsidiary, Network Appliance B.V.
 
As of July 28, 2006, Global is in compliance with all debt covenants as required by the Loan Agreement.
 
6.   Short-Term Investments
 
The following is a summary of investments at July 28, 2006:
 
                                 
    Amortized
    Gross Unrealized     Estimated
 
    Cost     Gains     Losses     Fair Value  
 
Auction rate securities
  $ 160,536     $     $     $ 160,536  
Municipal bonds
    3,531             56       3,475  
Corporate securities
    205,534       33       149       205,418  
Corporate bonds
    476,324       397       4,222       472,499  
U.S. government agencies
    339,028       2       3,767       335,263  
U.S. Treasuries
    15,130             210       14,920  
Money market funds
    11,365                   11,365  
                                 
Total debt and equity securities
    1,211,448       432       8,404       1,203,476  
Less cash equivalents
    147,254       33       74       147,213  
Less short-term restricted investments
    134,355             1,001       133,354 (1)
Less long-term restricted investments
    94,683             1,825       92,858 (1)
                                 
Short-term investments
  $ 835,156     $ 399     $ 5,504     $ 830,051  
                                 


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
The following is a summary of investments at April 30, 2006:
 
                                 
    Amortized
    Gross Unrealized     Estimated
 
    Cost     Gains     Losses     Fair Value  
 
Auction rate securities
  $ 325,608     $ 1     $     $ 325,609  
Municipal bonds
    5,024             65       4,959  
Corporate securities
    4,945             3       4,942  
Corporate bonds
    469,135       9       5,339       463,805  
U.S. government agencies
    286,983             3,812       283,171  
U.S. Treasuries
    20,189             386       19,803  
Money market funds
    472,722       17       114       472,625  
                                 
Total debt and equity securities
    1,584,606       27       9,719       1,574,914  
Less cash equivalents
    472,224       17       114       472,127  
Less short-term restricted investments
    138,215             1,507       136,708 (2)
Less long-term restricted investments
    106,616             2,173       104,443 (2)
                                 
Short-term investments
  $ 867,551     $ 10     $ 5,925     $ 861,636  
                                 
 
 
(1) As of July 28, 2006, we have pledged $133,354 and $92,858 of short-term and long-term restricted investments, respectively, for the Tranche A term loan as defined in the Loan Agreement (see Note 5). In addition, we have short-term and long-term restricted cash of $1,787 and $3,774, respectively, relating to our foreign rent, custom and service performance guarantee. These combined amounts are presented as short-term and long-term restricted cash and investments in the accompanying Consolidated Balance Sheets as of July 28, 2006.
 
(2) As of April 30, 2006, we have pledged $136,708 and $104,443 of short-term and long-term restricted investments, respectively, for the Tranche A term loan as defined in Loan Agreement (see Note 5). In addition, we have short-term and long-term restricted cash of $1,831 and $3,928, respectively, relating to our foreign rent, custom and service performance guarantee. These combined amounts are presented as short-term and long-term restricted cash and investments in the accompanying Consolidated Balance Sheets as of April 30, 2006.
 
We record net unrealized gains or losses on available-for-sale securities in stockholders’ equity. Realized gains or losses are reflected in income which have not been material for all years presented. The following table shows the gross unrealized losses and fair values of our investments, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at July 28, 2006:
 
                                                 
    Less Than 12 Months     12 Months or Greater     Total  
    Fair Value     Unrealized Loss     Fair Value     Unrealized Loss     Fair Value     Unrealized Loss  
 
Municipal bonds
  $ 2,295     $ (39 )   $ 1,180     $ (17 )   $ 3,475     $ (56 )
Corporate securities
    87,014       (149 )                 87,014       (149 )
U.S. Treasuries
    10,018       (86 )     4,902       (124 )     14,920       (210 )
U.S. government agencies
    208,479       (2,291 )     123,275       (1,476 )     331,754       (3,767 )
Corporate bonds
    227,542       (1,923 )     215,628       (2,299 )     443,170       (4,222 )
                                                 
Total
  $ 535,348     $ (4,488 )   $ 344,985     $ (3,916 )   $ 880,333     $ (8,404 )
                                                 
 
Management evaluates investments on a regular basis to determine if an other-than-temporary impairment has occurred, and there were none as of July 28, 2006. The unrealized losses on these investments at July 28, 2006 were primarily due to interest rate fluctuations. We have the ability and intent to hold these investments until recovery of their carrying values. We also believe that we will be able to collect all principal and interest amounts due to us at


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

maturity given the high credit quality of these investments. Accordingly, we do not consider these investments to be other-than-temporarily impaired at July 28, 2006.
 
7.   Inventories
 
Inventories are stated at the lower of cost (first-in, first-out basis) or market. Inventories consist of the following:
 
                 
    July 28,
    April 30,
 
    2006     2006  
 
Purchased components
  $ 12,744     $ 17,231  
Work in process
    2,575       744  
Finished goods
    40,923       46,477  
                 
    $ 56,242     $ 64,452  
                 
 
8.   Goodwill and Intangible Assets
 
Goodwill is reviewed annually for impairment (or more frequently if indicators of impairment arise). We completed our annual impairment assessment in fiscal 2006 and concluded that goodwill was not impaired. In the quarter ended July 28, 2006, there were no indicators that would suggest the impairment of goodwill and intangible assets.
 
Intangible assets are summarized as follows:
 
                                                     
    Amortization
  July 28, 2006     April 30, 2006  
    Period
        Accumulated
    Net
          Accumulated
    Net
 
    (Years)   Gross Assets     Amortization     Assets     Gross Assets     Amortization     Assets  
 
Intangible Assets:
                                                   
Patents
  5   $ 10,040     $ (5,943 )   $ 4,097     $ 10,040     $ (5,448 )   $ 4,592  
Existing technology
  4 - 5     91,025       (36,163 )     54,862       91,025       (32,297 )     58,728  
Trademarks/tradenames
  3 - 6     5,080       (963 )     4,117       5,080       (739 )     4,341  
Customer Contracts/relationships
  1.5 - 5     8,620       (2,740 )     5,880       8,620       (2,380 )     6,240  
Covenants Not to Compete
  1.5 - 2     9,510       (8,597 )     913       9,510       (8,360 )     1,150  
                                                     
Total Intangible Assets, Net
      $ 124,275     $ (54,406 )   $ 69,869     $ 124,275     $ (49,224 )   $ 75,051  
                                                     
 
Amortization expense for identified intangible assets is summarized below:
 
                 
    Three Months Ended  
    July 28,
    July 29,
 
    2006     2005  
 
Patents
  $ 495     $ 495  
Existing technology
    3,866       1,108  
Other identified intangibles
    821       1,563  
                 
    $ 5,182     $ 3,166  
                 


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
Based on the identified intangible assets recorded at July 28, 2006, the future amortization expense of identified intangibles for the remainder of fiscal 2007 and the next four fiscal years and thereafter is as follows:
 
         
Year Ending April,
  Amount  
 
Remainder of Fiscal 2007
  $ 15,526  
2008
    19,884  
2009
    17,466  
2010
    12,653  
2011
    4,073  
Thereafter
    267  
         
Total
  $ 69,869  
         
 
9.   Derivative Instruments
 
As a result of our significant international operations, we are subject to risks associated with fluctuating exchange rates. We use derivative financial instruments, principally currency forward contracts and currency options, to attempt to minimize the impact of exchange rate movements on our balance sheet and operating results. Factors that could have an impact on the effectiveness of our hedging program include the accuracy of forecasts and the volatility of foreign currency markets. These programs reduce, but do not always entirely eliminate, the impact of currency exchange movements. The maturities of these instruments are generally less than one year.
 
Currently, we do not enter into any foreign exchange forward contracts to hedge exposures related to firm commitments or equity investments. Our major foreign currency exchange exposures and related hedging programs are described below:
 
Balance Sheet Exposures.  We utilize foreign currency forward and options contracts to hedge exchange rate fluctuations related to certain foreign assets and liabilities. Gains and losses on these derivatives offset gains and losses on the assets and liabilities being hedged and the net amount is included in earnings. For the quarter ended July 28, 2006, net losses generated by hedged assets and liabilities totaled $21 and were offset by gains on the related derivative instruments of $663. For the quarter ended July 29, 2005, net gains generated by hedged assets and liabilities totaled $3,450, and were offset by losses on the related derivative instruments of $3,713.
 
The premiums paid on the foreign currency option contracts are recognized as a reduction to other income when the contract is entered into. Other than the risk associated with the financial condition of the counterparties, our maximum exposure related to foreign currency options is limited to the premiums paid.
 
Forecasted Transactions.  We use currency forward contracts to hedge exposures related to forecasted sales and operating expenses denominated in certain foreign currencies. These contracts are designated as cash flow hedges and in general closely match the underlying forecasted transactions in duration. The contracts are carried on the balance sheet at fair value and the effective portion of the contracts’ gains and losses is recorded as other comprehensive income until the forecasted transaction occurs.
 
If the underlying forecasted transactions do not occur, or it becomes probable that they will not occur, the gain or loss on the related cash flow hedge is recognized immediately in earnings. For the quarter ended July 28, 2006 and July 29, 2005, we did not record any gains or losses related to forecasted transactions that did not occur or became improbable.
 
We measure the effectiveness of hedges of forecasted transactions on at least a quarterly basis by comparing the fair values of the designated currency forward contracts with the fair values of the forecasted transactions.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
As of July 28, 2006, the notional fair values of foreign exchange forward and foreign currency option contracts totaled $172,996.
 
10.   Earnings Per Share
 
Basic net income per share is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding excluding unvested restricted stock for that period. Diluted net income per share is computed giving effect to all dilutive potential shares that were outstanding during the period. Dilutive potential common shares consist of incremental common shares subject to repurchase, common shares issuable upon exercise of stock options and restricted stock awards.
 
During all periods presented, we had certain options outstanding, which could potentially dilute basic earnings per share in the future, but were excluded in the computation of diluted earnings per share in such periods, as their effect would have been antidilutive. These certain options were antidilutive in the quarter ended July 28, 2006 and July 29, 2005 as these options’ exercise prices were above the average market prices in such periods. For the quarter ended July 28, 2006 and July 29, 2005, 25,857 and 17,969 shares of common stock options with a weighted average exercise price of $42.72 and $49.80, respectively, were excluded from the diluted net income per share computation.
 
The following is a reconciliation of the numerators and denominators of the basic and diluted net income per share computations for the periods presented:
 
                 
    Three Months Ended  
    July 28,
    July 29,
 
    2006     2005  
 
Net Income (Numerator):
               
Net income, basic and diluted
  $ 54,670     $ 60,120  
                 
Shares (Denominator):
               
Weighted average common shares outstanding
    374,315       367,842  
Weighted average common shares outstanding subject to repurchase
    (446 )     (404 )
                 
Shares used in basic computation
    373,869       367,438  
Weighted average common shares outstanding subject to repurchase
    446       404  
Common shares issuable upon exercise of stock options
    17,004       18,541  
                 
Shares used in diluted computation
    391,319       386,383  
                 
Net Income Per Share:
               
Basic
  $ 0.15     $ 0.16  
                 
Diluted
  $ 0.14     $ 0.16  
                 


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
11.   Stockholders’ Equity
 
Stock Repurchase Program
 
Through July 28, 2006, the Board of Directors had authorized the repurchase of up to $650,000 in shares of our outstanding common stock. Share repurchase activities for the quarter ended July 28, 2006 and July 29, 2005, were as follows:
 
                 
    Three Months Ended  
    July 28, 2006     July 29, 2005  
 
Shares repurchased
    6,561       3,262  
Cost of shares repurchased
  $ 220,000     $ 95,543  
Average price per share
  $ 33.53     $ 29.29  
 
Since the inception of the stock repurchase program through July 28, 2006, we have purchased a total of 38,557 shares of our common stock at an average price of $26.92 per share for an aggregate purchase price of $1,037,983. At July 28, 2006, $185,656 remained available for repurchases under the plan. The stock repurchase program may be suspended or discontinued at any time.
 
Comprehensive Income
 
The components of comprehensive income were as follows:
 
                 
    Three Months Ended  
    July 28,
    July 29,
 
    2006     2005  
 
Net income
  $ 54,670     $ 60,120  
Currency translation adjustment
    651       (1,838 )
Unrealized gain (loss) on investments
    1,741       (4,106 )
Unrealized gain on derivatives
    968       1,617  
                 
Comprehensive income
  $ 58,030     $ 55,793  
                 
 
The components of accumulated other comprehensive loss were as follows:
 
                 
    July 28,
    April 30,
 
    2006     2006  
 
Accumulated translation adjustments
  $ 1,018     $ 367  
Accumulated unrealized loss on derivatives
    (783 )     (1,751 )
Accumulated unrealized loss on available-for-sale investments
    (7,973 )     (9,714 )
                 
Total accumulated other comprehensive loss
  $ (7,738 )   $ (11,098 )
                 
 
12.   Restructuring Charges
 
In fiscal 2002, as a result of continuing unfavorable economic conditions and a reduction in IT spending rates, we implemented two restructuring plans, which included reductions in our workforce and consolidations of our facilities. As of July 28, 2006, we have no outstanding balance in our restructuring liability for the first restructuring. The second restructuring related to the closure of an engineering facility and consolidation of resources to the Sunnyvale headquarters. In fiscal 2006, we implemented a third restructuring plan related to the move of our global services center operations from Sunnyvale to our new flagship support center at our Research Triangle Park facility in North Carolina. Of the reserve balance at July 28, 2006, $724 was included in other accrued liabilities and the remaining $1,975 was classified as long-term obligations.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
Our restructuring estimates are reviewed and revised periodically and may result in a substantial charge or reduction to restructuring expense should different conditions prevail than were anticipated in previous management estimates. Such estimates included various assumptions such as the time period over which the facilities will be vacant, expected sublease terms, and expected sublease rates. During the quarter ended July 28, 2006, we recorded a reduction in restructuring reserve of $74 resulting from change in estimate of our third restructuring plan.
 
                         
    Facility Accrual     Severance-Related     Total  
 
Reserve balance at April 30, 2005
  $ 4,503     $     $ 4,503  
Restructuring charges
    281       859       1,140  
Adjustments
    (1,256 )           (1,256 )
Cash payments
    (862 )     (521 )     (1,383 )
                         
Reserve balance at April 30, 2006
  $ 2,666     $ 338     $ 3,004  
Restructuring (recoveries) charges
          (74 )     (74 )
Cash payments
    (149 )     (82 )     (231 )
                         
Reserve balance at July 28, 2006
  $ 2,517     $ 182     $ 2,699  
                         
 
13.   New Accounting Pronouncements
 
In July 2006, the Financial Accounting Standards Board (“FASB”) issued FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes — an Interpretation of FASB Statement No. 109 (FIN No. 48). FIN No. 48 prescribes a comprehensive model for how a company should recognize, measure, present, and disclose in its financial statements uncertain tax positions that the Company has taken or expects to take on a tax return (including a decision whether to file or not to file a return in a particular jurisdiction). FIN No. 48 is applicable to all uncertain tax positions for taxes accounted for under FASB Statement No. 109, Accounting for Income Taxes (SFAS No. 109) and substantially changes the applicable accounting model. FIN No. 48 is likely to cause greater volatility in income statements as more items are recognized discretely within income tax expense. We are required to adopt FIN No. 48 for fiscal years beginning after May 1, 2007. We are currently evaluating the effect that the adoption of FIN No. 48 will have on our consolidated results of operations and financial condition but do not expect it to have a material impact.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
14.   Commitments and Contingencies
 
The following summarizes our commitments and contingencies at July 28, 2006, and the effect such obligations may have on our future periods:
 
                                                         
    Remainder of
                                     
    2007     2008     2009     2010     2011     Thereafter     Total  
 
Contractual Obligations:
                                                       
Office operating lease payments(1)
  $ 12,939     $ 16,787     $ 16,365     $ 13,624     $ 11,234     $ 30,812     $ 101,761  
Real estates lease payments(2)
          1,382       2,368       2,368       2,368       36,080       44,566  
Equipment operating lease payments(3)
    5,458       6,664       4,634       235       6             16,997  
Venture capital funding commitments(4)
    300       345       333       320       308       26       1,632  
Capital Expenditures(5)
    11,155       1,702                               12,857  
Communications & Maintenance(6)
    7,003       5,276       1,876       326       41             14,522  
                                                         
Total Contractual Cash Obligations
  $ 36,855     $ 32,156     $ 25,576     $ 16,873     $ 13,957     $ 66,918     $ 192,335  
                                                         
 
                                                         
    Remainder of
                                     
    2007     2008     2009     2010     2011     Thereafter     Total  
 
Other Commercial Commitments:
                                                       
Lines of Credit(7)
  $ 1,956     $     $     $     $     $ 345     $ 2,301  
                                                         
 
 
(1) We lease sales offices and research and development facilities throughout the U.S. and internationally. These sales offices are leased under operating leases which expire through fiscal 2016. We are responsible for certain maintenance costs, taxes, and insurance under these leases. Substantially all lease agreements have fixed payment terms based on the passage of time. Some lease agreements provide us with the option to renew or terminate the lease. Our future operating lease obligations would change if we were to exercise these options and if we were to enter into additional operating lease agreements. Sublease income of $20 has been included as a reduction of the payment amounts shown in the table. Rent operating lease payments in the table exclude lease payments which are accrued as part of our fiscal 2002 restructurings and include only rent lease commitments that are over one year.
 
(2) On December 16, 2005, we entered into financing, construction and leasing arrangements with BNP Paribas LLC (“BNP”) for office space to be located on land currently owned by us in Sunnyvale, California. This arrangements requires us to lease our land to BNP for a period of 50 years to construct approximately 190,000 square feet of office space costing up to $38,500. After completion of construction, we will pay minimum lease payments which vary based on London Interbank Offered Rate (“LIBOR”) plus a spread (6.15% at July 28, 2006) on the cost of the facilities. We expect to begin paying lease payments on the completed buildings on September 2007 for a term of five years. We have the option to renew the lease for two consecutive five-year periods upon approval by BNP.
 
Upon expiration (or upon any earlier termination) of the lease term, we must elect one of the following options: we may (i) purchase the building from BNP for $38,500, (ii) if certain conditions are met, arrange for the sale of the building by BNP to a third party for an amount equal to at least $32,725, and be liable for any deficiency between the net proceeds received from the third party and $32,725, or (iii) pay BNP a supplemental payment of


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

$32,725, in which event, we may recoup some or all of such payment by arranging for a sale of the building by BNP during the ensuing 2 year period.
 
Included in the above contractual cash obligations are (a) lease commitments of $1,382 in fiscal 2008, $2,368 in each of the fiscal years 2009, 2010, 2011, 2012 and $987 in fiscal 2013, which are based on the LIBOR rate at July 28, 2006 for a term of 5 years, and (b) at the expiration or termination of the lease, a supplemental payment obligation equal to our minimum guarantee of $32,725 in the event that we elect not to purchase or arrange for a sale of the building.
 
The lease also requires us to maintain specified financial covenants with which we were in compliance as of July 28, 2006. Such specified financial covenants include a maximum ratio of Total Debt to Earnings Before Interest, Taxes, Depreciation and Amortization (“EBITDA”) and a Minimum Unencumbered Cash and Short Term Investments.
 
(3) Equipment operating leases include servers and IT equipment used in our Engineering labs and data centers.
 
(4) Venture capital funding commitments includes a quarterly committed management fee based on a percentage of our committed funding to be payable through June 2011.
 
(5) Capital expenditures include worldwide contractual commitments to purchase equipment and to construct building and leasehold improvements, which will be recorded as Property and Equipment.
 
(6) We are required to pay based on a minimum volume under certain communication contracts with major telecommunication companies as well as maintenance contracts with multiple vendors. Such obligations expire in April 2010.
 
(7) The amounts outstanding under these letters of credit relate to workers’ compensation, a customs guarantee, a corporate credit card program, and a foreign rent guarantee.
 
As of July 28, 2006, our notional fair values of foreign exchange forward and foreign currency option contracts totaled $172,996. We do not believe that these derivatives present significant credit risks, because the counterparties to the derivatives consist of major financial institutions, and we manage the notional amount of contracts entered into with any one counterparty. We do not enter into derivative financial instruments for speculative or trading purposes. Other than the risk associated with the financial condition of the counterparties, our maximum exposure related to foreign currency forward and option contracts is limited to the premiums paid on purchased options only.
 
We have both recourse and nonrecourse lease financing arrangements with third-party leasing companies through pre-existing relationships with the customers. We sell our products directly to the leasing company, and the lease arrangement is made between our customer and the leasing company. Under the terms of recourse leases, which are generally three years or less, we remain liable for the aggregate unpaid remaining lease payments to the third-party leasing company in the event that any customers default. For these recourse arrangements, revenue on the sale of our product to the leasing company are deferred and recognized into income as payments to the leasing company come due. As of July 28, 2006 and July 29, 2005, the maximum recourse exposure under such leases totaled approximately $7,779 and $8,271, respectively. Under the terms of the nonrecourse leases we do not have any continuing obligations or liabilities. To date, we have not experienced significant losses under this lease financing program.
 
From time to time, we have committed to purchase various key components used in the manufacture of our products. We establish accruals for estimated losses on purchased components for which we believe it is probable that they will not be utilized in future operations. To the extent that such forecasts are not achieved, our commitments and associated accruals may change.
 
We are subject to various legal proceedings and claims which may arise in the normal course of business. While the outcome of these legal matters is currently not determinable, we do not believe that any current litigation or claims will have a material adverse effect on our business, cash flow, operating results, or financial condition.


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NETWORK APPLIANCE, INC.
 
NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

 
We are currently undergoing federal income tax audits in the U.S. and several foreign tax jurisdictions. The rights to some of our intellectual property (“IP”) are owned by certain of our foreign subsidiaries, and payments are made between foreign and U.S. tax jurisdictions relating to the use of this IP. Recently, some other companies have had their foreign IP arrangements challenged as part of an examination. Our management does not believe, based upon information currently known to us, that the final resolution of any of our audits will have a material adverse effect upon our consolidated financial position and the results of operations and cash flows. However, if upon the conclusion of these audits the ultimate determination of our taxes owed in any of these tax jurisdictions is for an amount in excess of the tax provision we have recorded or reserved for, our overall effective tax rate may be adversely impacted.


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Item 2.   Management’s Discussion and Analysis of Financial Condition and Results of Operations
 
This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and are subject to the safe harbor provisions set forth in the Exchange Act. Forward-looking statements usually contain the words “estimate,” “intend,” “plan,” “predict,” “seek,” “may,” “will,” “should,” “would,” “anticipate,” “expect,” “believe,” or similar expressions and variations or negatives of these words. In addition, any statements that refer to expectations, projections or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. All forward-looking statements, including, but not limited to, (1) our expectation that revenue from the FAS3000 and FAS6000 series continue to increase and revenue from the FAS900 series and NearStore® R200 series to continue to decline for the remainder of fiscal 2007; (2) our belief that high-performance computing customers can leverage our Data ONTAP® GX to achieve higher performance and scalability; (3) our expectation that impact on earnings from NetCache® transaction to be negligible; (4) our belief that our strategic investments are targeted at some of the strongest growth areas of the storage market; (5) our anticipation that we will experience further price decline per petabyte for our products; (6) our expectation that our future gross margins will be negatively affected by factors such as global service investment cost; competition, indirect sales including OEM, high disk content partially offset by new product introductions and enhancements and product and add-on software mix; (7) our belief that that our new emerging products for the small and medium business market will further expand our market opportunity; (8) our plan to broaden our total addressable market and extend our product lines into adjacent spaces; (9) our plan to invest in the people, processes and systems necessary to best optimize our revenue growth; (10) our belief that the final resolution of the tax audits will not have a material adverse effect on our results of operations and cash flows; (11) our estimate that the impact of adopting SFAS No. 123R will have on our earnings per share; (12) our belief that close to two-thirds of all ATA shipped on our FAS storage systems are used in secondary storage; (13) our expectation that higher disk content associated with high-end storage systems will negatively affect our gross margin in the future; (14) our estimates of future intangibles amortization expense relating to our acquisitions; (15) our expectation that service margin will experience some variability as we continue to build our service infrastructure; (16) our estimates of future amortization of patents, trademarks, tradenames, customer contracts and relationships (17) our expectation to continue to selectively add sales capacity; (18) our expectation that we will increase our sales and marketing expenses commensurate with future revenue growth; (19) our belief that our future performance will depend in large part on our ability to maintain and enhance our current product line, develop new products that achieve market acceptance, maintain technological competitiveness, and meet an expanding range of customer requirements; (20) our expectation that we will continuously support current and future product development and enhancement efforts and incur corresponding charges; (21) our intention to continuously broaden our existing product offerings and introduce new products; (22) our belief that our research and development expenses will increase in absolute dollars for the remainder of fiscal 2007; (23) our belief that our general and administrative expenses will increase in absolute terms in the remainder of fiscal 2007; (24) our estimates regarding future amortization of covenants not to compete; (25) our expectation that interest income will increase for the remainder of fiscal 2007; (26) our expectation that cash provided by operating activities may fluctuate in future periods; (27) the possibility we may receive less cash from stock option exercises if patterns change; (28) our expectations regarding our contractual cash obligations and other commercial commitments at July 28, 2006 for the remainder of fiscal 2007 and thereafter; (29) our expectation regarding the complete construction of our building under the BNP lease and the estimates regarding future minimum lease payments under the lease term; (30) our belief that capital expenditures will increase consistent with our business growth; (31) our expectation that our existing facilities and those currently being developed, will be sufficient for our needs for at least the next two years and that our contractual commitments, and any required capital expenditures over the next few years will be funded through cash from operations and existing cash and investments; (32) our expectation that we will incur higher capital expenditures in the near future to expand our operations; (33) our belief that our cash and cash equivalents, short-term investments, and cash generated from operations will satisfy our working capital needs, capital expenditures, stock repurchases, contractual obligations, and other liquidity requirements associated with our operations through at least the next 12 months, are inherently uncertain as they are based on management’s current expectations and assumptions concerning future events, and they are subject to numerous known and unknown risks and uncertainties. Readers are cautioned not to place undue reliance on these forward-looking statements, which


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speak only as of the date hereof and are based upon information available to us at this time. These statements are not guarantees of future performance. We disclaim any obligation to update information in any forward-looking statement.
 
First Quarter Fiscal 2007 Overview
 
Our revenues for the quarter ended July 28, 2006 were $621.3 million, a 38.6% increase over the same period a year ago. Revenue growth occurred across all major geographies. The net increase in revenues year over year was attributable to increased software licenses and software subscriptions, increased service revenue, an expanded portfolio with new products and solutions for the enterprise, partially offset by lower cost-per-megabyte disks, and a decline in shipments and lower average selling prices of our older generation products.
 
We experienced a continued decline in the older FAS900 series systems, which were more than offset by our new product lines. Units shipped of the FAS3000 increased 528.4% year over year, and the average capacity on revenue units of the FAS3000 series increased almost 95.3% year over year. We began shipping the FAS6000 series, which contributed 4.0% of our total revenue in the first quarter of fiscal 2007. We expect revenue from the FAS3000 and FAS6000 series to increase and revenue from the FAS900 series and NearStore R200 series to continue to decline in fiscal 2007. We recently announced the availability of our new Data ONTAP GX operating system, our next generation operating system, which combines the global namespace functionality of SpinOS (acquired through the Spinnaker Networks® acquisition) with the key data management, performance, and high-availability features of Data ONTAP 7G. Coupled with the new FAS6070 and/or FAS3050 systems, we believe that high-performance computing (HPC) customers can leverage the clustered file system technology inherent in Data ONTAP GX to achieve higher performance and scalability.
 
During our first quarter of fiscal 2007, our total storage shipped increased to 73 petabytes, a 105.3% increase from the 35 petabytes shipped in the same quarter a year ago. Data protection, disaster recovery, archival and compliance requirements all contributed to the increase in petabytes shipped, particularly in ATA drives. ATA drives accounted for 60.7% of this increase, increasing to 54.2% of total petabytes shipped from 47.4% in the same prior year period.
 
On June 22, 2006, we agreed to sell NetCache to Blue Coat Systems, Inc. (“Blue Coat”). NetCache contributed 3.0% of total revenue in the first quarter of fiscal 2007 compared to 3.3% the same period in the prior year. We will continue to recognize revenue from our NetCache deferred revenue even after the sale of the NetCache assets is complete. In addition, we will also continue to support our existing NetCache customers’ service contracts for the life of their contracts. We expect the impact on earnings from this transaction to be negligible.
 
We believe that our strategic investments are targeted at some of the strongest growth areas of the storage market, such as modular storage, data protection, data retention, data security, iSCSI, and grid computing. However, if any storage market trends and emerging standards on which we are basing our assumptions do not materialize as anticipated, our business could be materially adversely affected. Revenue growth in the first quarter of fiscal 2007 has occurred while the market for our storage products and solutions has grown more competitive with downward pricing pressures that could negatively impact our future revenue growth rate and our future gross margins. We anticipate and continue to experience further price declines per petabyte for our products which may have an adverse impact on our future gross margins if not offset by favorable software mix and higher average selling prices associated with new products. According to International Data Corporation’s (IDC) Worldwide Disk Storage Systems 2006-2010 Forecast and Analysis, May 2006, IDC predicts that the average dollar per petabyte (PB) will drop from $8.5/PB in 2006 to $1.8/PB in 2010. At the same time, we also expect our future gross margins to be negatively affected by factors such as global service investment cost; competition, indirect sales including OEM, high disk content partially offset by new product introductions and enhancements and product and add-on software mix.
 
Continued revenue growth is dependent on the introduction and market acceptance of our new products. We believe that our new emerging products such as Decru®, Virtual Tape Library, and StoreVaulttm S500 for the small and medium business market will further expand our market opportunity. We plan to broaden our total addressable market and extend our product lines into adjacent spaces. If we fail to timely introduce new products or successfully integrate acquired technology into our existing architecture, or if there is no or reduced demand for these or our


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current products, we may experience a decline in revenue. We plan to invest in the people, processes, and systems necessary to best optimize our revenue growth and long-term profitability. However, we cannot assure you that such investments will achieve our financial objectives.
 
First Quarter Fiscal 2007 Financial Performance
 
  •  Our revenues for the quarter ended July 28, 2006 were $621.3 million, a 38.6% increase over the same period a year ago. This represented an increase of 3.9% sequentially over the last quarter. Our revenue growth was driven by the adoption of our enterprise storage products, the FAS3000 and FAS6000 series, secondary storage for compliance applications, and the Decru security and encryption solutions.
 
  •  Our overall gross margins decreased to 60.0% in the quarter ended July 28, 2006 from 61.0% in the same period a year ago. The decline in our gross margin was primarily attributable to the impact of the adoption of SFAS No. 123R and the related stock compensation expenses, partially offset by a higher add-on software mix, favorable production costs, and improved services margins.
 
  •  Cash, cash equivalents and short-term investments decreased to $1,272.4 million, compared to $1,322.9 million as of April 30, 2006, due primarily to cash repurchases of our common stock of $220.0 million, partially offset by cash generated from operations. Days sales outstanding decreased to 55 days as of July 28, 2006 compared to 63 days as of April 30, 2006, reflecting more linear shipments. Inventory turns were 17.3 times and 14.7 times as of July 28, 2006 and April 30, 2006, respectively, due to higher inventory associated with the new FAS6000 launch in the fourth quarter of fiscal 2006 and increased shipments of this product in the first quarter of fiscal 2007. Deferred revenue increased to $743.2 million as of July 28, 2006 from $681.5 million reported as of April 30, 2006 due to higher software subscription and service billings attributable to the increase in larger enterprise customers. Capital purchases of plant, property and equipment for the first quarters of fiscal 2007 and 2006 were $23.1 million and $33.5 million, respectively, reflecting continued capital investment to meet our business growth.
 
Critical Accounting Estimates and Policies
 
Our discussion and analysis of financial condition and results of operations are based upon our Consolidated Financial Statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of such statements requires us to make estimates and assumptions that affect the reported amounts of revenues and expenses during the reporting period and the reported amounts of assets and liabilities as of the date of the financial statements. Our estimates are based on historical experience and other assumptions that we consider to be appropriate in the circumstances. However, actual future results may vary from our estimates.
 
We believe that the following accounting policies are “critical” as defined by the Securities and Exchange Commission, in that they are both highly important to the portrayal of our financial condition and results, and require difficult management judgments and assumptions about matters that are inherently uncertain. We also have other important policies, including those related to derivative instruments and concentration of credit risk. However, these policies do not meet the definition of critical accounting policies because they do not generally require us to make estimates or judgments that are difficult or subjective. These policies are discussed in Note 3 to the Consolidated Financial Statements accompanying this Quarterly Report on Form 10-Q.
 
We believe the accounting policies described below are the ones that most frequently require us to make estimates and judgments, and therefore are critical to the understanding of our results of operations:
 
  •  Revenue recognition and allowances
 
  •  Valuation of goodwill and intangibles
 
  •  Accounting for income taxes
 
  •  Inventory write-downs
 
  •  Restructuring accruals


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  •  Impairment losses on investments
 
  •  Accounting for stock-based compensation
 
  •  Loss contingencies
 
Revenue Recognition and Allowances
 
We apply the provisions of Statement of Position (“SOP”) No. 97-2, Software Revenue Recognition, and related interpretations to our product sales, both hardware and software, because our software is essential to the performance of our hardware. We recognize revenue when:
 
  •  Persuasive evidence of an arrangement exists.  It is our customary practice to have a purchase order and/or contract prior to recognizing revenue on an arrangement from our end users, customers, value-added resellers, or distributors.
 
  •  Delivery has occurred.  Our product is physically delivered to our customers, generally with standard transfer terms such as FOB origin. We typically do not allow for restocking rights with any of our value-added resellers or distributors. Products shipped with acceptance criteria or return rights are not recognized as revenue until all criteria are achieved. If undelivered products or services exist that are essential to the functionality of the delivered product in an arrangement, delivery is not considered to have occurred.
 
  •  The fee is fixed or determinable.  Arrangements with payment terms extending beyond our standard terms, conditions and practices are not considered to be fixed or determinable. Revenue from such arrangements is recognized as the fees become due and payable. We typically do not allow for price-protection rights with any of our value-added resellers or distributors.
 
  •  Collection is probable.  Probability of collection is assessed on a customer-by-customer basis. Customers are subjected to a credit review process that evaluates the customers’ financial position and ultimately their ability to pay. If it is determined at the outset of an arrangement that collection is not probable based upon our review process, revenue is recognized upon cash receipt.
 
Our multiple element arrangements include our systems and generally may also include one or more of the following undelivered elements: installation services, software subscriptions, premium hardware maintenance and storage review services. If the arrangement contains both software-related and non-software related elements, we allocate revenue to the non-software elements based on objective and reliable evidence of fair value in accordance with EITF 00-21, Revenue Arrangements with Multiple Deliverables. Non-software elements are items for which the functionality of the software is not essential to its performance; the non-software related elements in our arrangements may consist of storage optimization reviews (which are only sold within a bundled offering that also contains software-related services), technical consulting and/or installation services. For undelivered software-related elements, we apply the provisions of SOP 97-2 and determine fair value of these undelivered software-related elements based on vendor specific objective evidence which for us consists of the prices charged when these services are sold separately.
 
For arrangements with multiple elements, we recognize as revenue the difference between the total arrangement price and the greater of fair value or stated price for any undelivered elements (“the residual method”).
 
Our software subscriptions entitle our customers to receive unspecified product upgrades and enhancements on a when-and-if-available basis, bug fixes, and patch releases. Premium hardware maintenance services include contracts for technical support and minimum response times. Revenue from software subscriptions and premium hardware maintenance services is recognized ratably over the contractual term, generally one to three years; standard hardware warranty costs are considered an obligation under SFAS No. 5, Accounting for Contingencies and are expensed to cost of revenues when revenue is recognized. We also offer extended service contracts (which may include standard warranty as well as premium hardware maintenance) at the end of the warranty term; revenues from these contracts are recognized ratably over the contract term. When storage optimization reviews are sold as a bundled element with our software subscriptions and premium hardware maintenance services, the revenue is recognized ratably over the contract term. We typically sell technical consulting services separately from any of our other revenue elements, either on a time and materials basis or for fixed price standard projects; we recognize


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revenue for these services as they are performed. Revenue from hardware installation services is recognized at the time of delivery and any remaining costs are accrued, as the remaining undelivered services are considered to be inconsequential and perfunctory.
 
If vendor specific evidence cannot be obtained to determine fair value of the undelivered elements, revenue from the entire arrangement would be deferred and recognized as these elements are delivered. This would have a material effect on the timing of product revenues.
 
We record reductions to revenue for estimated sales returns at the time of shipment. Sales returns are estimated based on historical sales returns, changes in customer demand, current trends, and our expectations regarding future experience. Reductions to revenue associated with sales returns include consideration of historical sales levels, the timing and magnitude of historical sales returns and a projection of this experience into the future. We monitor and analyze the accuracy of sales returns estimates by reviewing actual returns and adjust them for future expectations to determine the adequacy of our current and future reserve needs. Our reserve levels have been sufficient to cover actual returns and have not required material changes in subsequent periods. While we currently have no expectations for significant changes to these reserves, if actual future returns and allowances differ from past experience, additional allowances may be required.
 
We also maintain a separate allowance for doubtful accounts for estimated losses based on our assessment of the collectibility of specific customer accounts and the aging of the accounts receivable. We analyze accounts receivable and historical bad debts, customer concentrations, customer solvency, current economic and geographic trends, and changes in customer payment terms and practices when evaluating the adequacy of current and future allowance. In circumstances where we are aware of a specific customer’s inability to meet its financial obligations to us, a specific allowance for bad debt is estimated and recorded which reduces the recognized receivable to the estimated amount we believe will ultimately be collected. We monitor and analyze the accuracy of allowance for doubtful accounts estimate by reviewing past collectibility and adjust it for future expectations to determine the adequacy of our current and future allowance. Our reserve levels have generally been sufficient to cover credit losses. Our allowance for doubtful accounts as of July 28, 2006 was $2.6 million, compared to $2.4 million as of April 30, 2006. During the year ended April 30, 2006, we reduced our reserve by $1.5 million due to overall improvement in our collections history. However, if the financial condition of our customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required.
 
Valuation of Goodwill and Intangibles
 
Identifiable intangible assets are amortized over time, while in-process research and development is recorded as a charge on the date of acquisition and goodwill is capitalized, subject to periodic review for impairment. Accordingly, the allocation of the acquisition cost to identifiable intangible assets has a significant impact on our future operating results. The allocation process requires extensive use of estimates and assumptions, including estimates of future cash flows expected to be generated by the acquired assets. Should conditions be different than management’s current assessment, material write-downs of the fair value of intangible assets may be required. We periodically review the estimated remaining useful lives of our other intangible assets. In addition, a reduction in the estimate of remaining useful life could result in accelerated amortization expense or a write-down in future periods. As such, any future write-downs of these assets would adversely affect our gross and operating margins. We currently do not foresee changes to useful lives or write-downs to these assets.
 
Under our accounting policy we perform an annual review in the fourth quarter of each fiscal year, or more often if indicators of impairment exist. Triggering events for impairment reviews may be indicators such as adverse industry or economic trends, restructuring actions, lower projections of profitability, or a sustained decline in our market capitalization. Evaluations of possible impairment and, if applicable, adjustments to carrying values, require us to estimate, among other factors, future cash flows, useful lives, and fair market values of our reporting units and assets. When we conduct our evaluation of goodwill, the fair value of goodwill is assessed using valuation techniques that require significant management judgment. Should conditions be different from management’s last assessment, significant write-downs of goodwill may be required. In fiscal 2006, we performed such evaluation and found no impairment. However, any future write-downs of goodwill would adversely affect our operating margins.


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As of July 28, 2006, our assets included $487.5 million in goodwill. See Note 8, “Goodwill and Purchased Intangible Assets” to our consolidated financial statements.
 
During fiscal 2006, we adjusted goodwill by $3.5 million and $2.1 million relating to the tax benefits associated with the subsequent exercise of previously vested assumed Spinnaker and Decru options, respectively. Estimated future adjustments to goodwill related to the tax benefits associated with subsequent exercise of previously vested assumed options by previous acquisitions are approximately $8.4 million, subject to future cancellations relating to employee terminations.
 
Accounting for Income Taxes
 
The determination of our tax provision is subject to judgments and estimates due to operations in several tax jurisdictions outside the U.S. Earnings derived from our international business are generally taxed at rates that are lower than U.S. rates, resulting in a reduction of our effective tax rate. The ability to maintain our current effective tax rate is contingent upon existing tax laws in both the U.S. and the respective countries in which our international subsidiaries are located. Future changes in domestic or international tax laws could affect the continued realization of the tax benefits we are currently receiving and expect to receive from international business. In addition, a decrease in the percentage of our total earnings from our international business or in the mix of international business among particular tax jurisdictions could increase our overall effective tax rate. While most of our profits are earned in foreign jurisdictions with income tax rates generally lower than the combined U.S. federal and state income tax rates, judgment must be made with respect to other estimates of income tax provision, such as R&D tax credits and valuation allowances against deferred tax assets, primarily those set up for net operating losses and income tax credits.
 
We account for income taxes in accordance with SFAS No. 109, “Accounting for Income Taxes.” SFAS No. 109 requires that deferred tax assets and liabilities be recognized for the effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. SFAS No. 109 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax asset will not be realized. We have provided a valuation allowance of $409.0 million as of July 28, 2006, compared to $431.2 million as of April 30, 2006 on certain of our deferred tax assets related to net operating loss carryforwards, conditional royalty carryforwards, and tax credit carryforwards attributable to the exercise of employee stock options, because, under SFAS No. 123R, such amounts should not be realized until they result in a reduction of taxes payable; there was no impact from the adoption of SFAS No. 123R on deferred taxes as we had used a similar methodology for recording our valuation allowance for these amounts in prior years.
 
We based our provision for income taxes on the expected tax treatment of transactions recorded in our financial statements. In determining our provision for income taxes, we interpret tax legislation in a number of jurisdictions. The provisions for income taxes have not changed significantly from our estimates. Further tax provision adjustments are not expected, but are possible in the event our interpretation of tax legislation differs from that of the tax authorities.
 
We are currently undergoing federal income tax audits in the U.S. and several foreign tax jurisdictions. The rights to some of our intellectual property (“IP”) are owned by certain of our foreign subsidiaries, and payments are made between foreign and U.S. tax jurisdictions relating to the use of this IP. Recently, some other companies have had their foreign IP arrangements challenged as part of an examination. Our management does not believe, based upon information currently known to us, that the final resolution of any of our audits will have a material adverse effect upon our consolidated financial position and the results of operations and cash flows. However, if upon the conclusion of these audits the ultimate determination of our taxes owed in any of these tax jurisdictions is for an amount in excess of the tax provision we have recorded or reserved for, our overall effective tax rate may be adversely impacted.
 
Beginning with the fiscal year 2007 implementation of SFAS No. 123R, we may experience adverse impacts to future years’ effective tax rates in the event that we determine that our APIC pool as of the beginning of fiscal year 2007 is not sufficient to cover the impact of future stock compensation shortfalls.


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Inventory Write-Downs
 
Our inventories net balance was $56.2 million as of July 28, 2006, compared to $64.5 million as of April 30, 2006. Inventories are stated at the lower of cost (first-in, first-out basis) or market. We perform an in depth excess and obsolete analysis of our inventory based upon assumptions about future demand and market conditions. We adjust the inventory value based on estimated excess and obsolete inventories determined primarily by future demand forecasts. Although we strive for accuracy in our forecasts of future product demand, any significant unanticipated changes in demand or technological developments could have a significant impact on the value of our inventory and commitments, and our reported results. If actual market conditions are less favorable than those projected, additional write-downs and other charges against earnings may be required. If actual market conditions are more favorable, we may realize higher gross margins in the period when the written-down inventory is sold. During the past few years, our inventory reserves have generally been sufficient to cover excess and obsolete exposure and have not required material changes in subsequent periods.
 
We record purchase commitment liabilities with our contract manufacturers and suppliers as a result of changes in demand forecasts or as we transition our products. As of July 28, 2006, we did not have purchase commitment under such arrangements.
 
We engage in extensive, ongoing product quality programs and processes, including actively monitoring and evaluating the quality of our component suppliers. We also provide for the estimated cost of known product failures based on known quality issues when they arise. Should actual cost of product failure differ from our estimates, revisions to the estimated liability would be required.
 
We are subject to a variety of federal, state, local and foreign environmental regulations relating to the use, storage, discharge and disposal of hazardous chemicals used during our manufacturing process or requiring design changes or recycling of products we manufacture. We will continue to monitor our environmental compliance and could incur higher costs including additional reserves for excess component inventory.
 
Restructuring Accruals
 
In fiscal 2002, as a result of continuing unfavorable economic conditions and a reduction in IT spending rates, we implemented two restructuring plans, which included reductions in our workforce and a consolidation of our facilities. In fiscal 2006, we implemented the third restructuring plan related to the move of our global service center operations. In determining restructuring charges, we analyze our future business requirements in order to properly align and manage our business commensurate with our future revenue levels.
 
Our restructuring costs, and any resulting accruals, involve significant estimates made by management using the best information available at the time the estimates are made, some of which may be provided by third parties. In recording severance reserves, we accrue a liability when the following conditions have been met: employees’ rights to receive compensation is attributable to employees’ services already rendered; the obligation relates to rights that vest or accumulate; payment of the compensation is probable; and the amount can be reasonably estimated. In recording facilities lease restructuring reserve, we make various assumptions, including the time period over which the facilities are expected to be vacant, expected sublease terms, expected sublease rates, anticipated future operating expenses, and expected future use of the facilities.
 
Our estimates involve a number of risks and uncertainties, some of which are beyond our control, including future real estate market conditions and our ability to successfully enter into subleases or lease termination agreements with terms as favorable as those assumed when arriving at our estimates. We regularly evaluate a number of factors to determine the appropriateness and reasonableness of our restructuring and lease loss accruals including the various assumptions noted above. If actual results differ significantly from our estimates, we may be required to adjust our restructuring and lease loss accruals in the future. We estimated our facility and severance restructuring reserve to be $2.7 million as of July 28, 2006. Our fiscal 2006 facility restructuring reserve included a $1.0 million adjustment related to the execution of a new sublease agreement for our Tewksbury facility net of related cost.


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Impairment Losses on Investments
 
As of July 28, 2006, our short-term investments have been classified as “available-for-sale” and are carried at fair value. There have been no significant declines in fair value of investments that are considered to be other-than-temporary, for any of the three years in the period ended July 28, 2006. The fair value of our available-for-sale investment reflected in the Consolidated Balance Sheets was $1,056.3 million and $1,102.8 million as of July 28, 2006 and April 30, 2006, respectively. We have not identified any of these declines to be other than temporary as market declines of our investments have been caused by interest rate changes and were not due to credit worthiness. Because we have the ability and intent to hold these investments until maturity, we would not expect any significant decline in value of our investments caused by market interest rate changes. We have no impairment losses on our available-for-sale investment or investment in privately held companies for quarters ended July 28, 2006 and July 29, 2005.
 
All of our available-for-sale investments and non-marketable equity securities are subject to a periodic impairment review. Investments are considered to be impaired when a decline in fair value is judged to be other-than-temporary. This determination requires significant judgment. For publicly traded investments, impairment is determined based upon the specific facts and circumstances present at the time, including factors such as current economic and market conditions, the credit rating of the security’s issuer, the length of time an investment’s fair value has been below our carrying value, and our ability and intent to hold investments to maturity. If an investment’s decline in fair value, caused by factors other than changes in interest rates, is deemed to be other-than-temporary, we would reduce its carrying value to its estimated fair value, as determined based on quoted market prices or liquidation values. Our investments in privately held companies were $12.1 million and $11.0 million as of July 28, 2006 and April 30, 2006, respectively. For non-marketable equity securities, the impairment analysis requires the identification of events or circumstances that would likely have a significant adverse effect on the fair value of the investment, including, revenue and earnings trends, overall business prospects, limited capital resources, limited prospects of receiving additional financing, limited prospects for liquidity of the related securities and general market conditions in the investees’ industry.
 
Accounting for Stock-Based Compensation
 
We adopted SFAS No. 123R, Share-Based Payment, using the Black-Scholes option pricing model to value our employee stock options. The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model, and is not remeasured as a result of subsequent stock price fluctuations. Option pricing models require the input of highly subjective assumptions, including the expected stock price volatility, expected life, and forfeiture rate. We have chosen to base our estimate of future volatility using the implied volatility of traded options to purchase the Company’s common stock as permitted by SAB No. 107. As of May 1, 2006, the contractual life of our stock options has been shortened to seven years from ten years for options issued on or after this date, and to the extent that the shorter life changes employees’ exercise behavior, it may change the expected term of an option going forward. SFAS No. 123R requires us to use estimated forfeitures, and therefore, the adoption of SFAS No. 123R could have a material impact on the timing of and, based on the accuracy of estimates of future actual forfeitures, the amount of stock compensation expense. Any changes in these highly subjective assumptions may significantly impact the stock compensation expense for the future. Likewise, the shortening of the contractual life of our options could change the estimated exercise behavior in a manner other than currently expected.
 
We currently estimate that the impact of adopting SFAS No. 123R on our fiscal year ending April 30, 2007 will be between $0.33 and $0.40 per share.
 
Loss Contingencies
 
We are subject to the possibility of various loss contingencies arising in the course of business. We consider the likelihood of the loss or impairment of an asset or the incurrence of a liability as well as our ability to reasonably estimate the amount of loss in determining loss contingencies. An estimated loss contingency is accrued when it is probable that a liability has been incurred or an asset has been impaired and the amount of loss can be reasonably estimated. In the quarters ended July 28, 2006 and July 29, 2005, we did not identify or accrue for any loss


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contingencies. We regularly evaluate current information available to us to determine whether such accruals should be adjusted.
 
New Accounting Standards
 
See Note 13 of the Consolidated Condensed Financial Statements for a full description of recent accounting pronouncements including the respective expected dates of adoption and effects on results of operations and financial condition.
 
Results of Operations
 
The following table sets forth certain consolidated statements of income data as a percentage of total revenues for the periods indicated:
 
                 
    Three Months Ended  
    July 28,
    July 29,
 
    2006     2005  
 
Revenues: 
    100.0 %     100.0 %
Product
    74.9       76.0  
Software Subscriptions
    12.0       12.0  
Service
    13.1       12.0  
Cost of Revenues:
               
Cost of product
    30.3       29.3  
Cost of software subscriptions
    0.4       0.5  
Cost of service
    9.3       9.2  
                 
Gross margin
    60.0       61.0  
                 
Operating Expenses:
               
Sales and marketing
    31.4       30.8  
Research and development
    14.3       11.6  
General and administrative
    5.2       4.7  
Restructuring recoveries
          (0.3 )
                 
Total operating expenses
    50.9       46.8  
                 
Income from Operations
    9.1       14.2  
Other Income (Expense), net:
               
Interest income
    2.7       2.0  
Interest expense
    (0.6 )      
Other income (expense), net
    0.1       (0.1 )
Net gain on investments
           
                 
Total other income, net
    2.2       1.9  
                 
Income before Income Taxes
    11.3       16.1  
Provision for Income Taxes
    2.5       2.7  
                 
Net Income
    8.8 %     13.4 %
                 
 
Discussion and Analysis of Results of Operations
 
Total Revenues — Total revenues increased by 38.6% to $621.3 million for the quarter ended July 28, 2006, from $448.4 million for the quarter ended July 29, 2005.
 
Product Revenues — Product revenues increased by 36.6% to $465.6 million for the quarter ended July 28, 2006, from $340.9 million for the quarter ended July 29, 2005.


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Product revenues were impacted by the following factors:
 
  •  increased revenues from our current product portfolio. Product revenue grew $124.7 million year over year, with a $87.1 million increase due to unit volume partially offset by a decrease of $8.9 million due to price and configuration on existing products. Price changes, volumes, and product model mix can have an effect on changes in product revenues; the impact on these forces is significantly affected by the configuration of systems shipped
 
  •  new products generated $46.5 million in the first quarter of fiscal 2007
 
  •  increased enterprise traction in secondary storage, i.e., data protection, disaster recovery, archival and compliance requirements contributed to the increase in our petabytes shipped with ATA drives increased to 54.2% of total petabytes shipped from 45.3% in the same quarter a year ago. The new 500 gigabit ATA drives, introduced in the fourth quarter of fiscal 2006, contributed 31.1% of the total capacity shipped this quarter. We believe that approximately two-thirds of all ATA shipped on our FAS storage systems are used in secondary storage
 
  •  increased sales through indirect channels, including sales through our resellers, distributors and OEM partners, represented 55.7% and 50.4% of total revenues for the quarter ended July 28, 2006 and July 29, 2005, respectively
 
  •  lower-cost-per-megabyte storage which is a significant component of our hardware costs. As performance has improved on these devices, the related sales price we can charge per megabyte of storage has decreased as well. Our average revenue per petabyte (PB) has decreased from $8.0/PB in the first quarter of calendar 2005 to $5.1/PB in the first quarter of calendar 2006, and
 
  •  revenues for our older products declined by $107.6 million year over year, primarily due to a decline in revenue and unit sales of FAS900 series systems by 58.8% and 62.0%, respectively. NearStore systems decreased by 46.2% in revenue and 56.5% in unit sales year over year. In addition, revenue also declined by $4.1 million year over year due to products that we no longer ship in the first quarter of fiscal 2007.
 
Our systems are highly configurable because of customer requirements in the open systems storage markets we serve. As a result, the wide variation in customized configuration can significantly impact revenue, cost of revenues, and gross margin performance. Price changes, volumes, and product model mix can have an effect on changes in product revenues; the impact on these forces is significantly affected by the configuration of systems shipped.
 
While revenues generated from IBM and Decru accounted for 2.8% and 2.5% of total revenue, respectively, for quarter ended July 28, 2006, we cannot assure you that IBM and Decru will continue to contribute meaningful revenue in future quarters. We also cannot assure you that we will be able to maintain or increase market demand for our products.
 
Software Subscriptions Revenues — Software subscriptions revenues increased by 39.3% to $74.8 million for the quarter ended July 28, 2006, from $53.7 million for the quarter ended July 29, 2005 due primarily to a larger installed base of renewals, upgrades and an increased number of new enterprise customers. Software subscriptions revenues represented 12.0% of total revenues for both quarter ended July 28, 2006 and July 29, 2005.
 
Service Revenues — Service revenues, which include hardware support, professional services, and educational services, increased by 50.3% to $80.8 million for the quarter ended July 28, 2006, from $53.8 million in the quarter ended July 29, 2005.
 
The increase in absolute dollars was due to the following factors:
 
  •  professional service revenue increased by 49.8% to $28.7 million in the quarter ended July 28, 2006 from $19.2 million in the quarter ended July 29, 2005
 
  •  an increasing number of enterprise customers, which typically purchase more complete and generally longer-term service packages than our non-enterprise customers
 
  •  a growing installed base resulting in new customer support contracts in addition to support contract renewals by existing customers


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While it is an element of our strategy to expand and offer a more comprehensive, global enterprise support and service solution, we cannot assure you that service revenue will grow at the current rate in the remainder of fiscal 2007.
 
A large portion of our service revenues is deferred and, in most cases, recognized ratably over the service obligation periods, which are typically one to three years. Service revenues represented 13.1% and 12.0% of total revenues for the quarter ended July 28, 2006 and July 29, 2005, respectively.
 
International total revenues — International total revenues (including United States exports) increased by 47.6% for the quarter ended July 28, 2006 as compared to the same period in fiscal 2006. Total revenues from Europe were $194.9 million, or 31.4% of total revenues for the quarter ended July 28, 2006, compared to $127.0 million, or 28.3% of total revenues for the quarter ended July 29, 2005. Total revenues from Asia were $73.3 million, or 11.8% of total revenues for the quarter ended July 28, 2006, compared to $54.7 million, or 12.2% of total revenues for the quarter ended July 29, 2005. The increase in international sales was primarily driven by the same factors outlined under the Total Revenue discussion, as compared to the same period in the prior fiscal year. We cannot assure you that we will be able to maintain or increase international revenues in the remainder of fiscal 2007.
 
Product Gross Margin — Product gross margin decreased to 59.6% for the quarter ended July 28, 2006, from 61.4% for the same period in fiscal 2006.
 
Product gross margin was negatively impacted by:
 
  •  sales price reductions due to competitive pricing pressure and selective pricing discounts
 
  •  increased sales through certain indirect channels, which may have lower gross margins than our direct sales in certain geographic regions
 
  •  higher disk content with an expanded storage capacity for the higher-end filers and NearStore systems, as resale of disk drives generates lower gross margin
 
Product gross margin was favorably impacted by:
 
  •  favorable add-on software mix with software licenses increasing by 44.0% in first quarter of fiscal 2007 compared to first quarter of fiscal 2006
 
  •  better disk utilization rates associated with sales of higher-margin management software products like FlexClonetm and FlexVoltm that run on the Data ONTAP 7G operating system allowing customers to buy less disk storage.
 
We expect higher disk content associated with high-end storage systems will negatively affect our gross margin in the future if not offset by increases in software revenue and new higher-margin products.
 
Stock compensation included in cost of product revenues was $0.7 million for the quarter ended July 28, 2006. Amortization of existing technology included in cost of product revenues was $3.9 million and $1.1 million for the quarter ended July 28, 2006 and July 29, 2005, respectively. Estimated future amortization of existing technology to cost of product revenues will be $11.6 million for the remainder of fiscal 2007, $15.5 million for fiscal year 2008, $14.7 million for fiscal year 2009; $10.3 million for fiscal year 2010; $2.8 million for fiscal year 2011; and none thereafter.
 
Software Subscriptions Gross Margin — Software subscriptions gross margins increased slightly to 96.9% for the quarter ended July 28, 2006, from 95.8% for the quarter ended July 29, 2005 due primarily to improved headcount utilization and larger installed base renewals, upgrades and an increasing number of new enterprise customers.
 
Service Gross Margin — Service gross margin increased to 28.3% for the quarter ended July 28, 2006 as compared to 23.5% in the same period in fiscal 2006. Cost of service revenue increased by 40.8% to $58.0 million for the quarter ended July 28, 2006, from $41.2 million for the quarter ended July 29, 2005. Stock compensation of $2.6 million was included in the cost of service revenue for the quarter ended July 28, 2006.


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The improvement in service gross margin for the first quarter ended July 28, 2006 compared to the same quarter in fiscal 2006 was primarily due to an increase in services revenue and improved headcount utilization, partially offset by the continued spending in our service infrastructure to support our increasing enterprise customer base. This spending included additional professional support engineers, increased support center activities, and global service partnership programs. Service gross margin will typically be impacted by factors such as timing of technical support service initiations and renewals and additional investments in our customer support infrastructure. In fiscal 2007, we expect service margin to experience some variability over time as we continue to build out our service capability and capacity to support our growing enterprise customers and new products.
 
Sales and Marketing — Sales and marketing expenses consist primarily of salaries, commissions, advertising and promotional expenses, and certain customer service and support costs. Sales and marketing expenses increased 41.9% to $195.5 million for the quarter ended July 28, 2006, from $137.8 million for the same period a year ago. These expenses were 31.4% and 30.8% of total revenues for the first quarters of fiscal 2007 and fiscal 2006, respectively. The increase in absolute dollars was attributed to increased commission expenses resulting from increased revenues, higher performance-based payroll expenses due to higher profitability, higher partner program expenses, the continued worldwide investment in our sales and global service organizations associated with selling complete enterprise solutions and stock compensation expenses recognized under adoption of SFAS No. 123R.
 
Stock compensation included in sales and marketing expenses for the quarter ended July 28, 2006 was $18.7 million. Deferred compensation expenses related to stock options and restricted stocks assumed in acquisitions was $0.5 million for the quarter ended July 29, 2005. Amortization of Spinnaker trademarks/tradenames and customer contracts/relationships included in sales and marketing expenses was $0.6 million and $0.2 million for quarter ended July 28, 2006 and July 29, 2005, respectively. Estimated future amortization of trademarks, tradenames, customer contracts and relationships included in sales and marketing expenses will be $1.7 million for the remainder of fiscal 2007, and $2.2 million for fiscal 2008, 2009, 2010 and $1.3 million for fiscal 2011.
 
Sales and marketing headcount increased to 2,044 at July 28, 2006 from 2,010 at July 29, 2005. We expect to continue to selectively add sales capacity in an effort to expand domestic and international markets, introduce new products, establish and expand new distribution channels, and increase product and company awareness. We expect to increase our sales and marketing expenses commensurate with future revenue growth.
 
Research and Development — Research and development expenses consist primarily of salaries and benefits, prototype expenses, non-recurring engineering charges, fees paid to outside consultants and amortization of capitalized patents.
 
Research and development expenses increased 70.0% to $88.7 million for the quarter ended July 28, 2006 from $52.2 million for the same period ended July 29, 2005. These expenses represented 14.3% and 11.6% of total revenues for the first quarters of fiscal 2007 and 2006, respectively. The increase in research and development expenses was primarily a result of increased headcount, ongoing operating impact of the acquisitions, ongoing support of current and future product development and enhancement efforts, higher performance-based payroll expenses due to higher profitability, and stock-based compensation recognized under adoption of SFAS No. 123R. Research and development headcount increased to 1,292 as of July 28, 2006 compared to 886 as of July 29, 2005. For both quarters ended July 28, 2006 and July 29, 2005, no software development costs were capitalized.
 
Stock compensation included in research and development expenses for the quarter ended July 28, 2006 was $13.9 million. Deferred compensation expenses related to stock options and restricted stocks assumed in acquisitions was $1.4 million for quarter ended July 29, 2005. Included in research and development expenses is capitalized patents amortization of $0.5 million for both the quarter ended July 28, 2006 and July 29, 2005, respectively. Based on capitalized patents recorded at July 28, 2006, estimated future capitalized patents amortization expenses for the remainder of fiscal 2007 will be $1.5 million, $2.0 million for fiscal years 2008, $0.5 million in fiscal 2009, $0.2 million in fiscal 2010, and none thereafter.
 
We believe that our future performance will depend in large part on our ability to maintain and enhance our current product line, develop new products that achieve market acceptance, maintain technological competitiveness, and meet an expanding range of customer requirements. We expect to continuously support current and future product development and enhancement efforts, and incur prototyping expenses and nonrecurring engineering


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charges associated with the development of new products and technologies. We intend to continuously broaden our existing product offerings and introduce new products that expand our solutions portfolio.
 
We believe that our research and development expenses will increase in absolute dollars for the remainder of fiscal 2007, primarily due to ongoing costs associated with the development of new products and technologies, projected headcount growth and the operating impact of potential future acquisitions as compared to fiscal 2006.
 
General and Administrative — General and administrative expenses increased 52.8% to $32.4 million for the quarter ended July 28, 2006, from $21.2 million for the same period ended July 29, 2005. These expenses represented 5.2% and 4.7% of total revenues for the first quarters of fiscal 2007 and 2006, respectively. This increase in absolute dollars was primarily due to higher legal expenses and professional fees for general corporate matters, including patents, higher performance-based payroll expenses due to higher profitability and higher headcount growth and stock-based compensation recognized under SFAS No. 123R.
 
General and administrative headcount increased to 614 at July 28, 2006 from 457 at July 29, 2005. We believe that our general and administrative expenses will increase in absolute dollars for fiscal 2006 due to projected general and administrative headcount growth. Stock compensation included in general and administrative expenses for the quarter ended July 28, 2006 was $7.1 million. Deferred compensation expenses related to stock options and restricted stocks assumed in acquisitions was $0.2 million for the quarter ended July 29, 2005. Amortization of covenants not to compete included in general and administrative expenses was $0.2 million and $1.4 million for the quarter ended July 28, 2006 and July 29, 2005, respectively. Estimated future amortization of covenants not to compete relating to our acquisitions will be $0.7 million in the remainder of fiscal 2007, $0.2 million for fiscal year 2008, and none thereafter.
 
Restructuring Charges — In fiscal 2002, as a result of continuing unfavorable economic conditions and a reduction in IT spending rates, we implemented two restructuring plans, which included reductions in our workforce and consolidations of our facilities. As of July 28, 2006, we have no outstanding balance in our restructuring liability for the first restructuring. The second restructuring related to the closure of an engineering facility and consolidation of resources to the Sunnyvale headquarters. In fiscal 2006, we implemented a third restructuring plan related to the move of our global services center operations from Sunnyvale to our new flagship support center at our Research Triangle Park facility in North Carolina.
 
Our restructuring estimates are reviewed and revised periodically and may result in a substantial charge or reduction to restructuring expense should different conditions prevail than were anticipated in previous management estimates. Such estimates included various assumptions such as the time period over which the facilities will be vacant, expected sublease terms, and expected sublease rates. During the quarter ended July 28, 2006, we recorded a reduction in restructuring reserve of $0.1 million resulting from change in estimate of our third restructuring plan.
 
Of the reserve balance at July 28, 2006, $0.7 million was included in other accrued liabilities and the remaining $2.0 million was classified as long-term obligations. The balance of the reserve is expected to be paid by fiscal 2011.
 
The following analysis sets forth the changes in the restructuring reserve for the three months ended July 28, 2006 (in thousands):
 
                         
    Facility Accrual     Severance-Related     Total  
 
Reserve balance at April 30, 2005
  $ 4,503     $     $ 4,503  
Restructuring charges
    281       859       1,140  
Adjustments
    (1,256 )           (1,256 )
Cash payments
    (862 )     (521 )     (1,383 )
                         
Reserve balance at April 30, 2006
  $ 2,666     $ 338     $ 3,004  
Restructuring (recoveries) charges
          (74 )     (74 )
Cash payments
    (149 )     (82 )     (231 )
                         
Reserve balance at July 28, 2006
  $ 2,517     $ 182     $ 2,699  
                         


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Interest Income — Interest income was $16.7 million and $9.0 million for the quarter ended July 28, 2006 and July 29, 2005, respectively. The increase in interest income was primarily driven by higher average interest rates on our investment portfolio. We expect interest income to increase for fiscal 2007 as a result of rising average interest rates and cash and invested balances in a higher interest-rate portfolio environment.
 
Interest Expense — Interest expense was $3.9 million and $0.1 million for the quarter ended July 28, 2006 and July 29, 2005, respectively. The increase in fiscal 2007 was primarily due to interest incurred in connection with our debt.
 
Other Income (Expense), Net — Other Income (Expense), Net, included net exchange gains from foreign currency transactions of $0.8 million for the quarter ended July 28, 2006, and net exchange losses from foreign currency transactions of $0.2 million for the quarter ended July 29, 2005. We believe that period-to-period changes in foreign exchange gain or losses will continue to be impacted by hedging costs associated with our forward and option activities and forecast variance.
 
Provision for Income Taxes — For the quarter ended July 28, 2006, we applied an annual effective tax rate of 22.0% to pretax income versus 16.9% for the comparable period in the prior year. The increase to the effective tax rate for fiscal year 2007 is attributable to the impacts of SFAS No. 123R. These rates reflect a favorable foreign tax ruling for our principal European subsidiary. Our estimate of the effective tax rate is based on the application of existing tax laws to current projections of our annual consolidated income, including projections of the mix of income (loss) earned among our entities and tax jurisdictions in which they operate.
 
Liquidity and Capital Resources
 
The following sections discuss the effects of changes in our balance sheet and cash flow, contractual obligations and other commercial commitments, stock repurchase program, capital commitments, and other sources and uses of cash flow on our liquidity and capital resources.
 
Balance Sheet and Operating Cash Flows
 
As of July 28, 2006, as compared to April 30, 2006, our cash, cash equivalents, and short-term investments decreased by $50.5 million to $1,272.4 million. We derive our liquidity and capital resources primarily from our cash flow from operations and from working capital. Working capital decreased by $72.2 million to $1,043.8 million as of July 28, 2006, compared to $1,116.0 million as of April 30, 2006.
 
During the quarter ended July 28, 2006, we generated cash flows from operating activities of $164.6 million, as compared with $139.0 million in the same period in fiscal 2006. We recorded net income of $54.7 million in the first quarter fiscal 2007 as compared to $60.1 million in the same period in fiscal 2006. A summary of the significant changes in noncash adjustments affecting net income is as follows:
 
  •  Stock-based compensation expense was $43.0 million in first quarter of fiscal 2007, compared to $2.0 million in the same period a year ago. The increase is attributed to the adoption of SFAS No. 123R.
 
  •  Depreciation expense was $18.7 million and $14.8 million in the first quarters of fiscal 2007 and 2006, respectively. The increase was due to continued capital expansion to meet our business growth.
 
  •  Amortization of intangibles was $4.7 million and $2.7 million in the first quarters of fiscal 2007 and 2006, respectively. The increase was attributed to the Decru acquisition.
 
In addition to net income and noncash adjustments in the quarter ended July 28, 2006, the primary factors that impacted the period-to-period change in cash flows relating to operating activities included the following:
 
  •  An increase in deferred revenues of $61.9 million in the first quarter of fiscal 2007, due to higher software subscription and service billings attributable to the increase in larger enterprise customers, as well as renewals of existing maintenance agreements in the first quarter of fiscal 2007. The increase in deferred revenue of $36.7 million in the first quarter of fiscal 2006 was due to higher software subscription and service billings resulting from increased enterprise penetration;


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  •  Net inventory change for the first quarter of fiscal 2007 was relatively flat. The increase of $5.0 million in the first quarter of fiscal 2006 was due primarily to ramping up of purchased components in anticipation of revenue growth; and
 
  •  Decrease in accounts receivable of $38.2 million in the first quarter of fiscal 2007 was due to more linear shipments. Decrease in accounts receivable of $57.9 million in the first quarter of fiscal 2006 was due primarily to product transition issues resulting in a revenue shortfall.
 
The above factors were partially offset by the effects of:
 
  •  Accrued compensation and related benefits decrease by $39.0 million and $32.4 million in the first quarters of fiscal 2007 and 2006, respectively. The changes for both periods were due to payout of commission and performance-based payroll expenses accrued in the last quarter of each fiscal year and paid in the first quarter of each subsequent fiscal year; and
 
  •  Decrease in income taxes payable of $6.9 million in the first quarter of fiscal 2007 was attributed to tax payments of $22.5 million, which included an $18.7 million federal income tax payment made for the fiscal year 2006 tax year relating to the income tax on the foreign dividend repatriation, partially offset by the first quarter tax provision of $15.4 million. Income tax payable increased $9.6 million in the first quarter of fiscal 2006, primarily due to tax provision of $12.3 million, partially offset by tax payments of $2.0 million.
 
We expect that cash provided by operating activities may fluctuate in future periods as a result of a number of factors, including fluctuations in our operating results, shipment linearity, accounts receivable collections, inventory management, and the timing of tax and other payments.
 
Cash Flows from Investing Activities
 
Capital expenditures for the quarter ended July 28, 2006 were $23.1 million as compared to $33.5 million in the same period a year ago. We received net proceeds of $32.0 million and used net proceeds of $8.8 million in the quarter ended July 28, 2006 and July 29, 2005, respectively, for net purchases/redemptions of short-term investments. We redeemed $16.3 million of restricted investment and its interest income pledged with JP Morgan Chase to repay the Tranche A term loan with JP Morgan Chase. (See Note 5.) Investing activities in the quarter ended July 28, 2006 also included new investments in privately held companies of $1.2 million. In the quarter ended July 29, 2005, we acquired Alacritus for a purchase price of approximately $13.7 million, including assumed options, cash payments of $11.0 million and related transaction costs.
 
Cash Flows from Financing Activities
 
We used $207.5 million and $45.2 million in the quarters ended July 28, 2006 and July 29, 2005, respectively, from net financing activities, which included repayment of debt, and sales of common stock related to employee stock transactions net of common stock repurchases. We made a repayment of $27.9 million for our debt during the quarter ended July 28, 2006. We repurchased 6.6 million and 3.3 million shares of common stock at a total of $220.0 million and $95.5 million during quarter ended July 28, 2006 and July 29, 2005, respectively. Other financing activities provided $36.8 million and $50.8 million in the quarter ended July 28, 2006 and July 29, 2005, respectively, which related to sales of common stock related to employee stock transactions. Tax benefits, related to tax deductions in excess of the compensation cost recognized, of $4.5 million was presented as financing cash flows for the quarter ended July 28, 2006 in accordance with SFAS No. 123R. During the quarter ended July 28, 2006 and July 29, 2005, we withheld $1.0 million and $0.4 million, respectively, from certain employees’ exercised shares of their restricted stock to reimburse for federal, state, and local withholding taxes obligations.
 
The change in cash flow from financing was primarily due to the effects of higher common stock repurchases partially offset by proceeds from the issuance of common stock under employee programs compared to the same period in the prior year. Net proceeds from the issuance of common stock related to employee participation in employee stock programs have historically been a significant component of our liquidity. The extent to which our employees participate in these programs generally increases or decreases based upon changes in the market price of our common stock. As a result, our cash flow resulting from the issuance of common stock related to employee participation in employee stock programs will vary.


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Other Factors Affecting Liquidity and Capital Resources
 
The American Jobs Creation Act of 2004 (“the Jobs Act”) created a one-time incentive for U.S. corporations to repatriate accumulated income earned abroad by providing an 85% dividend-received deduction for certain dividends from certain non-U.S. subsidiaries. We remitted $18.7 million related to the federal portion of the tax liability during the first quarter of fiscal 2007.
 
For the quarters ended July 28, 2006 and July 29, 2005, the income tax benefit associated with dispositions of employee stock transactions was $30.0 million and $16.3 million, respectively. Of the $30.0 million, $8.4 million relates to tax benefits generated from stock option exercises during the first quarter of fiscal 2007 while the remaining $21.6 million relates to a reduction of accrued income taxes payable due to the utilization of net operating loss carryovers generated from stock options in prior years. If stock option exercise patterns change, we may receive less cash from stock option exercises and may not receive the same level of tax benefits in the future, which could cause our cash payments for income taxes to increase.
 
On June 22, 2006, we entered into an asset purchase agreement with Blue Coat Systems, Inc. (“Blue Coat”). In connection with the transaction, we have agreed to sell to Blue Coat certain assets related to our NetCache business in exchange for consideration to consist of $23.9 million in cash and 360,000 shares of Blue Coat common stock. This transaction is expected to close within 90 days of announcement, subject to customary closing conditions.
 
Stock Repurchase Program
 
Through July 28, 2006, the Board of Directors had authorized the repurchase of up to $650.0 million in shares of our outstanding common stock. At July 28, 2006, $185.7 million remained available for future repurchases. The stock repurchase program may be suspended or discontinued at any time.
 
Debt
 
In March 2006, we received proceeds of the term loan totaling $300.0 million to finance a dividend under the Jobs Act. (See Note 5). The loan repayments of $131.3 million and $140.9 million are due in the remainder of fiscal 2007 and fiscal 2008, respectively. This debt was collateralized by restricted investments totaling $226.2 million, as well as certain foreign receivables as of July 28, 2006. In accordance with the payment terms of the loan agreement, interest payments will be approximately $9.1 million and $4.7 million in the remainder of fiscal 2007 and fiscal 2008, respectively. As of July 28, 2006, we are in compliance with the liquidity and leverage ratio as required by the Loan Agreement with the lenders.


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Contractual Cash Obligations and Other Commercial Commitments
 
The following summarizes our contractual cash obligations and commercial commitments at July 28, 2006, and the effect such obligations are expected to have on our liquidity and cash flow in future periods, (in thousands):
 
                                                         
    Remainder
                                     
    of 2007     2008     2009     2010     2011     Thereafter     Total  
 
Contractual Obligations:
                                                       
Office operating lease payments(1)
  $ 12,939     $ 16,787     $ 16,365     $ 13,624     $ 11,234     $ 30,812     $ 101,761  
Real estates lease payments(2)
          1,382       2,368       2,368       2,368       36,080       44,566  
Equipment operating lease payments(3)
    5,458       6,664       4,634       235       6             16,997  
Venture capital funding commitments(4)
    300       345       333       320       308       26       1,632  
Capital Expenditures(5)
    11,155       1,702                               12,857  
Communications & Maintenance(6)
    7,003       5,276       1,876       326       41             14,522  
Restructuring Charges(7)
    595       579       603       594       328             2,699  
Debt(8)
    140,344       145,532                               285,876  
                                                         
Total Contractual Cash Obligations
  $ 177,794     $ 178,267     $ 26,179     $ 17,467     $ 14,285     $ 66,918     $ 480,910  
                                                         
 
For purposes of the above table, contractual obligations for the purchase of goods and services are defined as agreements that are enforceable, legally binding on us, and subject us to penalties if we cancel the agreement. Some of the figures we include in this table are based on management’s estimates and assumptions about these obligations, including their duration, the possibility of renewal or termination, anticipated actions by management and third parties, and other factors. Because these estimates and assumptions are necessarily subjective, the enforceable and legally binding obligations we will actually pay in future periods may vary from those reflected in the table.
 
                                                         
    Remainder
                                     
    of 2007     2008     2009     2010     2011     Thereafter     Total  
 
Other Commercial Commitments:
                                                       
Lines of Credit(9)
  $ 1,956     $     $     $     $     $ 345     $ 2,301  
                                                         
 
 
(1) We enter into operating leases in the normal course of business. We lease sales offices, research and development facilities, and other property and equipment under operating leases throughout the U.S. and internationally, which expire through fiscal 2016. Substantially all lease agreements have fixed payment terms based on the passage of time and contain escalation clauses. Some lease agreements provide us with the option to renew the lease or to terminate the lease. Our future operating lease obligations would change if we were to exercise these options and if we were to enter into additional operating lease agreements. Sublease income of $0.02 million has been included as a reduction of the payment amounts shown in the table. Facilities operating lease payments exclude the leases impacted by the restructurings. The amounts for the leases impacted by the restructurings are included in subparagraph (6) below. The net increase in the office operating lease payments was primarily due to a new domestic lease executed with a 10-year term during the first quarter of fiscal 2007.
 
(2) On December 16, 2005, we entered into financing, construction and leasing arrangements with BNP Paribas LLC (“BNP”) for office space to be located on land currently owned by us in Sunnyvale, California. These arrangements require us to lease our land to BNP for a period of 50 years to construct approximately 190,000 square feet of office space costing up to $38.5 million. After completion of construction, we will pay minimum lease payments which vary based on London Interbank Offered Rate (“LIBOR”) plus a spread (6.15% at July 28, 2006) on the cost of the facilities. We expect to begin paying lease payments on the


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completed buildings on September 2007 for a term of five years. We have the option to renew the lease for two consecutive five-year periods upon approval by BNP.
 
Upon expiration (or upon any earlier termination) of the lease term, we must elect one of the following options: we may (i) purchase the building from BNP for $38.5 million, (ii) if certain conditions are met, arrange for the sale of the building by BNP to a third party for an amount equal to at least $32.7 million, and be liable for any deficiency between the net proceeds received from the third party and $32.7 million, or (iii) pay BNP a supplemental payment of $32.7 million, in which event, we may recoup some or all of such payment by arranging for a sale of the building by BNP during the ensuing 2 year period.
 
Included in the above contractual cash obligations are (a) lease commitments of $1.4 million in fiscal 2008, $2.4 million in each of the fiscal years 2009, 2010, 2011, 2012 and $1.0 million in fiscal 2013, which are based on the LIBOR rate at April 30, 2006 for a term of 5 years, and (b) at the expiration or termination of the lease, a supplemental payment obligation equal to our minimum guarantee of $32.7 million in the event that we elect not to purchase or arrange for a sale of the building.
 
The lease also requires us to maintain specified financial covenants with which we were in compliance as of July 28, 2006. Such specified financial covenants include a maximum ratio of Total Debt to Earnings Before Interest, Taxes, Depreciation and Amortization (“EBITDA”) and a Minimum Unencumbered Cash and Short Term Investments.
 
(3) Equipment operating leases include servers and IT equipment used in our Engineering labs and data centers.
 
(4) Venture capital funding commitments includes a quarterly committed management fee based on a percentage of our committed funding to be payable through June 2011.
 
(5) Capital expenditures include worldwide contractual commitments to purchase equipment and to construct building and leasehold improvements, which will be recorded as Property and Equipment.
 
(6) We are required to pay based on a minimum volume under certain communication contracts with major telecommunication companies as well as maintenance contracts with multiple vendors. Such obligations expire in April 2010.
 
(7) These amounts are included on our Consolidated Balance Sheets under Long-term Obligations and Other Accrued Liabilities, which is comprised of committed lease payments and operating expenses net of committed and estimated sublease income.
 
(8) Included in these amounts are $300.0 million loan on our Consolidated Balance Sheets under Current portion of long-term debt and Long-term Debt. This amount also includes estimated interest payments of $9.1 million for the remainder of fiscal 2007 and $4.7 million for fiscal 2008. The decrease from April 30, 2006 represented a loan repayment of $27.9 million, plus interest of $3.8 million for the first quarter of fiscal 2007.
 
(9) The amounts outstanding under these letters of credit relate to workers’ compensation, a customs guarantee, a corporate credit card program, and a foreign rent guarantee.
 
Capital Expenditure Requirements
 
We expect capital expenditures to increase in the future consistent with the growth in our business, as we continue to invest in people, land, buildings, capital equipment and enhancements to our worldwide infrastructure. We expect that our existing facilities and those being developed in Sunnyvale, California, Research Triangle Park (“RTP”), North Carolina and worldwide are adequate for our requirements over at least the next two years and that additional space will be available as needed. We expect to finance all our construction projects, including our contractual commitments, operating leases, and any required capital expenditures over the next few years through cash from operations and existing cash and investments.
 
Off-Balance Sheet Arrangements
 
As of July 28, 2006, our financial guarantees of $2.3 million that were not recorded on our balance sheet consisted of standby letters of credit related to workers’ compensation, a customs guarantee, a corporate credit card program, and a foreign rent guarantee.


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As of July 28, 2006, our notional fair values of foreign exchange forward and foreign currency option contracts totaled $173.0 million. We do not believe that these derivatives present significant credit risks, because the counterparties to the derivatives consist of major financial institutions, and we manage the notional amount of contracts entered into with any one counterparty. We do not enter into derivative financial instruments for speculative or trading purposes. Other than the risk associated with the financial condition of the counterparties, our maximum exposure related to foreign currency forward and option contracts is limited to the premiums paid.
 
We have entered into indemnification agreements with third parties in the ordinary course of business. Generally, these indemnification agreements require us to reimburse losses suffered by the third party due to various events, such as lawsuits arising from patent or copyright infringement. These indemnification obligations are considered off-balance sheet arrangements in accordance with FASB Interpretation 45, of FIN No. 45, “Guarantor’s Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of Indebtedness of Others.”
 
We have commitments related to a lease arrangement with BNP for approximately 190,000 square feet of office space to be located on land currently owned by us in Sunnyvale, California (as further described above under “Contractual Cash Obligations and Other Commercial Commitments”). We have evaluated our accounting for this lease under the provisions of FIN No. 46R, and have determined the following:
 
  •  BNP is a leasing company for BNP Paribas in the U.S. BNP is not a “special purpose entity” organized for the sole purpose of facilitating the lease to us. The obligation to absorb expected losses and receive expected residual returns rests with the parent BNP Paribas. Therefore, we are not the primary beneficiary of BNP as we do not absorb the majority of BNP’s expected losses or expected residual returns; and
 
  •  BNP has represented in the Closing Agreement (filed as Exhibit 10.40) that the fair value of the property leased to us by BNP is less than half of the total of the fair values of all assets of BNP, excluding any assets of BNP held within a silo. Further, the property leased to Network Appliance is not held within a silo. The definition of “held within a silo” means that BNP has obtained funds equal to or in excess of 95% of the fair value of the leased asset to acquire or maintain its investment in such asset through non-recourse financing or other contractual arrangements, the effect of which is to leave such asset (or proceeds thereof) as the only significant asset of BNP at risk for the repayment of such funds.
 
Accordingly, under the current FIN No. 46R standard, we are not required to consolidate either the leasing entity or the specific assets that we lease under the BNP lease. Assuming this transaction will continue to meet the provisions of FIN No. 46R as new standards evolve over time, our future minimum lease payments under this real estates lease will amount to a total of $44.6 million reported under our Note 14 “Commitments and Contingencies.”
 
As of July 28, 2006, except for operating leases and other contractual obligations outlined under the “Contractual Cash Obligations” table and under the “Off-Balance Sheet Arrangements” section, we do not have any off-balance sheet financing arrangements or liabilities, retained or contingent interests in transferred assets, or any obligation arising out of a material variable interest in an unconsolidated entity. We also do not have any majority-owned subsidiaries that are not included in the consolidated financial statements. Additionally, we do not have any interest in or relationship with, any special purpose entities.
 
Liquidity and Capital Resource Requirements
 
Key factors affecting our cash flows include our ability to effectively manage our working capital, in particular, accounts receivable and inventories and future demand for our products and related pricing. We expect to incur higher capital expenditures in the near future to expand our operations. We will from time to time acquire products and businesses complementary to our business. In the future, we may continue to repurchase our common stock, which would reduce cash, cash equivalents, and/or short-term investments available to fund future operations and meet other liquidity requirements. Based on past performance and current expectations, we believe that our cash and cash equivalents, short-term investments, and cash generated from operations will satisfy our working capital needs, capital expenditures, stock repurchases, contractual obligations, and other liquidity requirements associated with our operations.


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Item 3.   Quantitative and Qualitative Disclosures About Market Risk
 
We are exposed to market risk related to fluctuations in interest rates, market prices and foreign currency exchange rates. We use certain derivative financial instruments to manage these risks. We do not use derivative financial instruments for speculative or trading purposes. All financial instruments are used in accordance with management-approved policies.
 
Market Interest and Interest Income Risk
 
Interest and Investment Income — As of July 28, 2006, we had available-for-sale investments of $1,056.3 million. Our investment portfolio primarily consists of highly liquid investments with original maturities at the date of purchase of greater than three months, which are classified as available-for-sale. These highly liquid investments, consisting primarily of government, municipal, and corporate debt securities, and auction-rate securities, are subject to interest rate and interest income risk and will decrease in value if market interest rates increase. A hypothetical 10 percent increase in market interest rates from levels at July 28, 2006 would cause the fair value of these available-for-sale investments to decline by approximately $3.9 million. Because we have the ability to hold these investments until maturity we would not expect any significant decline in value of our investments caused by market interest rate changes. Declines in interest rates over time will, however, reduce our interest income. We do not use derivative financial instruments in our investment portfolio.
 
Lease Commitments — As of July 28, 2006, we have arrangements with BNP to lease our land for a period of 50 years to construct approximately 190,000 square feet of office space costing up to $38.5 million. After completion of construction, we will pay minimum lease payments which vary based on London Interbank Offered Rate (“LIBOR”) plus a spread. We expect to pay lease payments on the completed buildings from BNP on September 2007 for a term of five years. We have the option to renew the lease for two consecutive five-year periods upon approval by BNP. A hypothetical 10 percent increase in market interest rates from levels at July 28, 2006, would increase our total lease payments under the initial 5-year term by approximately $1.0 million. We do not currently hedge against market interest rate increases. As cash from operating cash flows are invested in a higher interest rate environment, it will offer a natural hedge against interest rate risk from our lease commitments in the event of a significant increase in market interest rate.
 
Debt Obligation — We have an outstanding variable rate term loan totaling $272.1 million as of July 28, 2006. Under terms of these arrangements, we expect to pay interest payments at LIBOR plus a spread. A hypothetical 10 percent increase in market interest rates from levels at July 28, 2006, would increase our total interest payments by approximately $1.5 million. We do not currently use derivatives to manage interest rate risk.
 
Equity securities — We have from time to time made cash investments in companies with distinctive technologies that are potentially strategically important to us. Our investments in non-marketable equity securities would be negatively affected by an adverse change in equity market prices, although the impact cannot be directly quantified. Such a change, or any negative change in the financial performance or prospects of the companies whose non-marketable securities we own, would harm the ability of these companies to raise additional capital and the likelihood of our being able to realize any gains or return of our investments through liquidity events such as initial public offerings, acquisitions and private sales. These types of investments involve a high degree of risk, and there can be no assurance that any company we invest in will grow or be successful. Accordingly, we could lose all or part of our investment. Our investments in non-marketable equity securities had a carrying amount of $12.1 million as of July 28, 2006 and $11.0 million as of April 30, 2006. If we determine that an other-than-temporary decline in fair value exists for a non-marketable equity security, we write down the investment to its fair value and record the related write-down as an investment loss in our Consolidated Statements of Income.
 
Foreign Currency Exchange Rate Risk
 
We hedge risks associated with foreign currency transactions to minimize the impact of changes in foreign currency exchange rates on earnings. We utilize forward and option contracts to hedge against the short-term impact of foreign currency fluctuations on certain assets and liabilities denominated in foreign currencies. All balance sheet hedges are marked to market through earnings every period. We also use foreign exchange forward contracts to hedge foreign currency forecasted transactions related to certain sales and operating expenses. These derivatives are


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designated as cash flow hedges under SFAS No. 133. For cash flow hedges outstanding at July 28, 2006, the gains or losses were included in other comprehensive income.
 
We do not enter into foreign exchange contracts for speculative or trading purposes. In entering into forward and option foreign exchange contracts, we have assumed the risk that might arise from the possible inability of counterparties to meet the terms of their contracts. We attempt to limit our exposure to credit risk by executing foreign exchange contracts with creditworthy multinational commercial banks. All contracts have a maturity of less than one year.
 
The following table provides information about our foreign exchange forward and currency option contracts outstanding on July 28, 2006 (in thousands):
 
                                 
          Foreign
    Contract Value
    Fair Value
 
Currency
  Buy/Sell     Currency Amount     USD     in USD  
 
Forward contracts:
                               
CAD
    Sell       11,708     $ 10,343     $ 10,468  
ZAR
    Sell       24,453     $ 3,547     $ 4,037  
EUR
    Sell       74,577     $ 95,235     $ 94,392  
GBP
    Sell       12,892     $ 23,942     $ 23,510  
CHF
    Sell       6,664     $ 5,412     $ 5,392  
ILS
    Sell       3,708     $ 837     $ 826  
AUD
    Buy       19,697     $ 15,085     $ 14,927  
JPY
    Buy       105,217     $ 922     $ 930  
SEK
    Buy       11,031     $ 1,527     $ 1,504  
DKK
    Buy       10,641     $ 1,822     $ 1,803  
NOK
    Buy       6,672     $ 1,081     $ 1,086  
Option contracts:
                               
EUR
    Sell       8,000     $ 10,230     $ 10,353  
GBP
    Sell       2,000     $ 3,729     $ 3,768  
 
Item 4.   Controls and Procedures
 
Disclosure controls are controls and procedures designed to ensure that information required to be disclosed in our reports filed under the Exchange Act, such as this Quarterly Report, is recorded, processed, summarized and reported within the time periods specified in the U.S. Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures are also designed to ensure that such information is accumulated and communicated to our management, including the CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.
 
Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, as of July 28, 2006, the end of the fiscal period covered by this quarterly report (the “Evaluation Date”). Based on this evaluation, our principal executive officer and principal financial officer concluded as of the Evaluation Date that our disclosure controls and procedures were effective such that the information relating to Network Appliance, including our consolidated subsidiaries, required to be disclosed in our Securities and Exchange Commission (“SEC”) reports (i) is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and (ii) is accumulated and communicated to Network Appliance’s management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.
 
There was no change in our internal control over financial reporting that occurred during the period covered by this Quarterly Report that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.


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PART II. OTHER INFORMATION
 
Item 1.   Legal Proceedings
 
None
 
Item 1A.   Risk Factors
 
The following risk factors and other information included in this Form 10-Q should be carefully considered. The risks and uncertainties described below are not the only ones we face. Additional risks and uncertainties not presently known to us or that we presently deem less significant may also impair our business operations. If any of the following risks actually occur, our business, operating results, and financial condition could be materially adversely affected.
 
Factors beyond our control could cause our quarterly results to fluctuate, which could adversely impact our common stock price.
 
We believe that period-to-period comparisons of our results of operations are not necessarily meaningful and should not be relied upon as indicators of future performance. Many of the factors that could cause our quarterly operating results to fluctuate significantly in the future are beyond our control and include, but are not limited to, the following:
 
  •  Changes in general economic conditions and specific economic conditions in the computer, storage, and networking industries
 
  •  General decrease in global corporate spending on information technology leading to a decline in demand for our products
 
  •  A shift in federal government spending patterns
 
  •  The possible effects of terrorist activity and international conflicts, which could lead to business interruptions and difficulty in forecasting
 
  •  The level of competition in our target product markets
 
  •  Our reliance on a limited number of suppliers due to industry consolidation, which could subject us to periodic supply-and-demand, price rigidity and quality issues with our components
 
  •  The size, timing, and cancellation of significant orders
 
  •  Product configuration and mix
 
  •  The extent to which our customers renew their service and maintenance contracts with us
 
  •  Market acceptance of new products and product enhancements
 
  •  Announcements, introductions, and transitions of new products by us or our competitors
 
  •  Deferrals of customer orders in anticipation of new products or product enhancements introduced by us or our competitors
 
  •  Changes in pricing by us in response to competitive pricing actions
 
  •  Our ability to develop, introduce, and market new products and enhancements in a timely manner
 
  •  Supply constraints
 
  •  Technological changes in our target product markets
 
  •  The levels of expenditure on research and development and sales and marketing programs
 
  •  Our ability to achieve targeted cost reductions
 
  •  Excess or inadequate facilities


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  •  Disruptions resulting from new systems and processes as we continue to enhance and adapt our system infrastructure to accommodate future growth
 
  •  Future accounting pronouncements and changes in accounting policies
 
  •  Seasonality
 
In addition, sales for any future quarter may vary and accordingly be different from what we forecast. We manufacture products based on a combination of specific order requirements and forecasts of our customer demands. Products are typically shipped within one to four weeks following receipt of an order. In certain circumstances, customers may cancel or reschedule orders without penalty. Product sales are also difficult to forecast because the storage and data management market is rapidly evolving and our sales cycle varies substantially from customer to customer.
 
We derive a majority of our revenue in any given quarter from orders booked in the same quarter. Bookings typically follow intra-quarter seasonality patterns weighted towards the back-end of the quarter. If we do not achieve bookings in the latter part of a quarter consistent with our quarterly financial targets, our financial results will be adversely impacted.
 
Due to all of the foregoing factors, it is possible that in one or more future quarters our results may fall below our forecasts and the expectations of public market analysts and investors. In such event, the trading price of our common stock would likely decrease.
 
If we are unable to develop and introduce new products and respond to technological change, if our new products do not achieve market acceptance, or if we fail to manage the transition between our new and old products, our operating results could be materially and adversely affected.
 
Our future growth depends upon the successful development and introduction of new hardware and software products. Due to the complexity of storage subsystems and storage security appliances, and the difficulty in gauging the engineering effort required to produce new products, such products are subject to significant technical risks. However, our new products may not achieve market acceptance. Additional product introductions in future periods may also impact our sales of existing products. In addition, our new products must respond to technological changes and evolving industry standards. If we are unable, for technological or other reasons, to develop and introduce new products in a timely manner in response to changing market conditions or customer requirements, or if such products do not achieve market acceptance, our operating results could be materially and adversely affected.
 
As new or enhanced products are introduced, we must successfully manage the transition from older products in order to minimize disruption in customers’ ordering patterns, avoid excessive levels of older product inventories, and ensure that enough supplies of new products can be delivered to meet customers’ demands.
 
An increase in competition could materially and adversely affect our operating results.
 
The storage markets are intensely competitive and are characterized by rapidly changing technology.
 
In the storage market, our primary and nearline storage system products and our associated storage software portfolio compete primarily with storage system products and data management software from EMC, HDS, H-P, IBM, and Sun Microsystems. We also see Dell, Inc. as an emerging competitor in the storage marketplace, primarily due to a business partnership that has been established between Dell and EMC, allowing Dell to resell EMC storage hardware and software products. We have also historically encountered less-frequent competition from companies including Engenio Information Technologies, Inc. (formerly the Storage Systems Group of LSI Logic Corp.), Dot Hill Systems Corporation, and Xiotech Corporation. In the secondary storage market, which includes the disk-to-disk backup, compliance and business continuity segments, our solutions compete primarily against products from EMC and Sun Microsystems, as a result of their acquisition of StorageTek Technology Corporation. Our NearStore VTL appliances also compete directly with traditional tape backup solutions in the broader data backup/recovery space.


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Additionally, a number of new, privately held companies are currently attempting to enter the storage systems and data management software markets, the nearline and VTL storage markets, some of which may become significant competitors in the future.
 
We believe that the principal competitive factors affecting the storage markets include product benefits such as response time, reliability, data availability, scalability, ease of use, price, multiprotocol capabilities, and global service and support. We must continue to maintain and enhance this technological advantage over our competitors. If those competitors with greater financial, marketing, service, support, technical, and other resources were able to offer products that matched or surpassed the technological capabilities of our products, these competitors would, by virtue of their greater resources, gain a competitive advantage over us that could lead to greater sales for these competitors at the expense of our own market share, which would have a material adverse affect on our business, financial condition, and results of operations.
 
Increased competition could also result in price reductions, reduced gross margins, and loss of market share, any of which could materially and adversely affect our operating results. Our competitors may be able to respond more quickly than we can to new or emerging technologies and changes in customer requirements or devote greater resources to the development, promotion, sale, and support of their products. In addition, current and potential competitors have established or may establish cooperative relationships among themselves or with third parties. Accordingly, it is possible that new competitors or alliances among competitors may emerge and rapidly acquire significant market share. We cannot assure you that we will be able to compete successfully against current or future competitors. Competitive pressures we face could materially and adversely affect our operating results.
 
We rely on a limited number of suppliers, and any disruption or termination of these supply arrangements could delay shipment of our products and could materially and adversely affect our operating results.
 
We rely on a limited number of suppliers of several key components utilized in the assembly of our products. We purchase our disk drives through several suppliers. We purchase computer boards and microprocessors from a limited number of suppliers. Our reliance on a limited number of suppliers involves several risks, including:
 
  •  A potential inability to obtain an adequate supply of required components because we do not have long-term supply commitments
 
  •  Supplier capacity constraints
 
  •  Price increases
 
  •  Timely delivery
 
  •  Component quality
 
Component quality is particularly significant with respect to our suppliers of disk drives. In order to meet product performance requirements, we must obtain disk drives of extremely high quality and capacity. In addition, there are periodic supply-and-demand issues for disk drives, microprocessors, and semiconductor memory components, which could result in component shortages, selective supply allocations, and increased prices of such components. We cannot assure you that we will be able to obtain our full requirements of such components in the future or that prices of such components will not increase. In addition, problems with respect to yield and quality of such components and timeliness of deliveries could occur. Disruption or termination of the supply of these components could delay shipments of our products and could materially and adversely affect our operating results. Such delays could also damage relationships with current, prospective customers and suppliers.
 
In addition, we license certain technology and software from third parties that is incorporated into our products. If we are unable to obtain or license the technology and software on a timely basis, we will not be able to deliver products to our customers in a timely manner.


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The loss of any contract manufacturers or the failure to accurately forecast demand for our products or successfully manage our relationships with our contract manufacturers could negatively impact our ability to manufacture and sell our products.
 
We currently rely on several contract manufacturers to manufacture most of our products. Our reliance on our third-party contract manufacturers reduces our control over the manufacturing process, exposing us to risks, including reduced control over quality assurance, production costs, and product supply. If we should fail to effectively manage our relationships with our contract manufacturers, or if our contract manufacturers experience delays, disruptions, capacity constraints, or quality control problems in their manufacturing operations, our ability to ship products to our customers could be impaired and our competitive position and reputation could be harmed. Qualifying a new contract manufacturer and commencing volume production are expensive and time-consuming. If we are required to change contract manufacturers or assume internal manufacturing operations, we may lose revenue and damage our customer relationships. If we inaccurately forecast demand for our products, we may have excess or inadequate inventory or incur cancellation charges or penalties, which could adversely impact our operating results. As of July 28, 2006, we have no purchase commitment under these agreements.
 
We intend to regularly introduce new products and product enhancements, which will require us to rapidly achieve volume production by coordinating with our contract manufacturers and suppliers. We may need to increase our material purchases, contract manufacturing capacity, and internal test and quality functions to meet anticipated demand. The inability of our contract manufacturers to provide us with adequate supplies of high-quality products, or the inability to obtain raw materials, could cause a delay in our ability to fulfill orders.
 
Our future financial performance depends on growth in the storage, and data management markets. If these markets do not continue to grow at the rates at which we forecast growth, our operating results will be materially and adversely impacted.
 
All of our products address the storage and data management markets. Accordingly, our future financial performance will depend in large part on continued growth in the storage and data management markets and on our ability to adapt to emerging standards in these markets. We cannot assure you that the markets for storage and data management will continue to grow or that emerging standards in these markets will not adversely affect the growth of UNIX, Windows, and the World Wide Web server markets upon which we depend.
 
For example, we provide our open access data retention solutions to customers within the financial services, healthcare, pharmaceuticals, and government market segments, industries that are subject to various evolving governmental regulations with respect to data access, reliability, and permanence (such as Rule 17(a)(4) of the Securities Exchange Act of 1934, as amended) in the United States and in the other countries in which we operate. If our products do not meet, and continue to comply with, these evolving governmental regulations in this regard, customers in these market and geographical segments will not purchase our products, and, therefore, we will not be able to expand our product offerings in these market and geographical segments at the rates for which we have forecast.
 
In addition, our business also depends on general economic and business conditions. A reduction in demand for storage and data management caused by weakening economic conditions and decreases in corporate spending will result in decreased revenues and lower revenue growth rates. The network storage market growth declined significantly beginning in the third quarter of fiscal 2001 through fiscal 2003, causing both our revenues and operating results to decline. If the storage and data management markets grow more slowly than anticipated or if emerging standards other than those adopted by us become increasingly accepted by these markets, our operating results could be materially and adversely affected.
 
Our gross margins may vary based on the configuration of our product and service solutions, and such variation may make it more difficult to forecast our earnings.
 
We derive a significant portion of our sales from the resale of disk drives as components of our storage systems, and the resale market for hard disk drives is highly competitive and subject to intense pricing pressures. Our sales of disk drives generate lower gross margin percentages than those of our storage systems. As a result, as we sell more


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highly configured systems with greater disk drive content, overall gross margin percentages may be negatively affected.
 
Our gross margins have been and may continue to be affected by a variety of other factors, including:
 
  •  Demand for storage and data management products
 
  •  Discount levels and price competition
 
  •  Direct versus indirect and OEM sales
 
  •  Product and add-on software mix
 
  •  The mix of services as a percentage of revenue
 
  •  The mix and average selling prices of products
 
  •  The mix of disk content
 
  •  New product introductions and enhancements
 
  •  Excess inventory purchase commitments as a result of changes in demand forecasts and possible product and software defects as we transition our products
 
  •  The cost of components, manufacturing labor, and quality
 
Changes in service gross margins may result from various factors such as continued investments in our customer support infrastructure, changes in the mix between technical support services and professional services, as well as the timing of technical support service contract initiations and renewals.
 
Our effective tax rate may increase or fluctuate, which could increase our income tax expense and reduce our net income.
 
Our effective tax rate could be adversely affected by several factors, many of which are outside of our control, including:
 
  •  Earnings being lower than anticipated in countries where we are taxed at lower rates as compared to the United States statutory tax rate
 
  •  Material differences between forecasted and actual tax rates as a result of a shift in the mix of pre-tax profits and losses by tax jurisdiction, our ability to use tax credits, or effective tax rates by tax jurisdiction different than our estimates
 
  •  Changing tax laws, accounting standards, including SFAS No. 123R, regulations, and interpretations in multiple tax jurisdictions in which we operate as well as the requirements of certain tax rulings
 
  •  An increase in expenses not deductible for tax purposes, including certain stock compensation, write-offs of acquired in-process research and development and impairment of goodwill
 
  •  The tax effects of purchase accounting for acquisitions and restructuring charges that may cause fluctuations between reporting periods
 
  •  Changes in the valuation of our deferred tax assets and liabilities
 
  •  Changes in tax laws or the interpretation of such tax laws
 
  •  Tax assessments, or any related tax interest or penalties, could significantly affect our income tax expense for the period in which the settlements take place
 
  •  A change in our decision to indefinitely reinvest foreign earnings
 
The price of our common stock could decline to the extent that our financial results are materially affected by an adverse change in our effective tax rate. We are currently undergoing federal income tax audits in the U.S. and several foreign tax jurisdictions. The rights to some of our intellectual property (“IP”) is owned by certain of our


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foreign subsidiaries, and payments are made between U.S. and foreign tax jurisdictions relating to the use of this IP. Recently, some other companies have had their foreign IP arrangements challenged as part of an examination. Our management does not believe, based upon information currently known to us that the final resolution of any of our audits will have a material adverse effect upon our consolidated financial position and the results of operations and cash flows. If the ultimate determination of our taxes owed in any of these tax jurisdictions is for an amount in excess of the tax provision we have recorded or reserved for, our operating results, cash flows, and financial condition could be adversely affected.
 
We may incur problems with current or future acquisitions and equity investments, and these investments may not achieve our objectives.
 
As part of our strategy, we are continuously evaluating opportunities to buy other businesses or technologies that would complement our current products, expand the breadth of our markets, or enhance our technical capabilities. We may engage in future acquisitions that dilute our stockholders’ investments and cause us to use cash, to incur debt, or to assume contingent liabilities.
 
Acquisitions of companies entail numerous risks, and we may not be able to successfully integrate acquired operations and products or realize anticipated synergies, economies of scale, or other value. Integration risks and issues may include, but are not limited to, key personnel retention and assimilation, management distraction, technical development, and unexpected costs and liabilities, including goodwill impairment charges. In addition, we may be unable to recover strategic investments in development stage entities. Any such problems could have a material adverse effect on our business, financial condition, and results of operation.
 
From time to time, we also make equity investments for the promotion of business and strategic objectives. We have already made strategic investments in a number of storage and data management-related technology companies. Equity investments may result in the loss of investment capital. The market price and valuation of our equity investments in these companies may fluctuate due to market conditions and other circumstances over which we have little or no control. To the extent that the fair value of these securities is less than our cost over an extended period of time, our results of operations and financial position could be negatively impacted.
 
We cannot assure you that our OEM relationship with IBM will generate significant revenue.
 
In April 2005, we announced a strategic partner relationship with IBM. As part of the relationship, we entered into an original equipment manufacturing (OEM) agreement that enables IBM to sell IBM branded solutions based on Network Appliance unified and open network attached storage (NAS) and iSCSI/IP SAN solutions, including NearStore and the NetApp® V-Series Systems, as well as associated software offerings. While this agreement is an element of our strategy to expand our reach into more customers and countries, we do not have an exclusive relationship with IBM and there is no minimum commitment for any given period of time, and therefore, we cannot assure you that this relationship will contribute any revenue in future years. In addition, we have no control over the products IBM selects to sell, their release schedule and timing of those products, nor do we control their pricing. Revenues from the IBM relationship were not significant during the first quarter of fiscal 2007 and fiscal year 2006 and accounted for 2.8% and 1.0% of our total consolidated revenue, respectively. In the event that sales through IBM were to gain significant traction, we may experience distribution channel conflicts between our direct sales force and IBM, or among our channel partners. If we fail to minimize channel conflicts, our operating results and financial condition could be harmed. In addition, since this agreement is relatively new, we do not have a history upon which to base our analysis of its future success.
 
Currently we do not, and cannot assure you that this OEM relationship will generate significant revenue or that this strategic partnership will continue to be in effect for any specific period of time.
 
If we are unable to maintain our existing relationships and develop new relationships with major strategic partners, our revenue may be impacted negatively.
 
An element of our strategy to increase revenue is to strategically partner with major third-party software and hardware vendors that integrate our products into their products and also comarket our products with these vendors. We have significant partner relationships with database, business application and backup management companies


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including Microsoft, Oracle, SAP and Symantec. A number of these strategic partners are industry leaders that offer us expanded access to segments of the storage market. There is intense competition for attractive strategic partners, and even if we can establish strategic relationships with these partners, we cannot assure you that these partnerships will generate significant revenue or that the partnerships will continue to be in effect for any specific period of time.
 
We intend to continue to establish and maintain business relationships with technology companies to accelerate the development and marketing of our storage solutions. To the extent we are unsuccessful in developing new relationships and maintaining our existing relationships, our future revenue and operating results could be impacted negatively. In addition, the loss of a strategic partner could have a material adverse effect on the progress of our new products under development with that partner.
 
We cannot assure you that we are able to maintain existing resellers, attract new resellers, and that channel conflicts will not materially adversely affect our channel relationships. In addition, we do not have exclusive relationships with our resellers and accordingly there is a risk that those resellers may give higher priority to products of other suppliers, which could materially adversely affect our operating results.
 
We market and sell our storage solutions directly through our worldwide sales force and indirectly through channels such as value-added resellers, or VARs, systems integrators, distributors, OEMs and strategic business partners and derive a significant portion of our revenue from these indirect channel partners. In the first quarter of fiscal 2007, Fujitsu Siemens and our two-tier distribution partners, Arrow and Avnet, accounted for 3.2% and 10.8%, respectively, of our consolidated revenue.
 
However, in order for us to maintain our current revenue sources and grow our revenue as we have forecasted, we must effectively manage our relationships with these indirect channel partners. To do so, we must attract and retain a sufficient number of qualified channel partners to successfully market our products. However, because we also sell our products directly to customers through our sales force, on occasion we compete with our indirect channels for sales of our products to our end customers, competition that could result in conflicts with these indirect channel partners and make it harder for us to attract and retain these indirect channel partners. At the same time, our indirect channel partners may offer products that are competitive to ours. In addition, because our reseller partners generally offer products from several different companies, including products of our competitors, these resellers may give higher priority to the marketing, sales, and support of our competitors’ products than ours. If we fail to manage effectively our relationships with these indirect channel partners to minimize channel conflict and continue to evaluate and meet our indirect sales partners’ needs with respect to our products, we will not be able to maintain or increase our revenue as we have forecasted, which would have a materially adverse affect on our business, financial condition, and results of operations. Additionally, if we do not manage distribution of our products and services and support effectively, or if our resellers’ financial conditions or operations weaken, our revenues and gross margins could be adversely affected.
 
Risks inherent in our international operations could have a material adverse effect on our operating results.
 
We conduct business internationally. For the quarter ended July 28, 2006, 43.2% of our total revenues were from international customers (including U.S. exports). Accordingly, our future operating results could be materially and adversely affected by a variety of factors, some of which are beyond our control, including regulatory, political, or economic conditions in a specific country or region, trade protection measures and other regulatory requirements, government spending patterns, and acts of terrorism and international conflicts.
 
Our international sales are denominated in U.S. dollars and in foreign currencies. An increase in the value of the U.S. dollar relative to foreign currencies could make our products more expensive and, therefore, potentially less competitive in foreign markets. Conversely, lowering our price in local currency may result in lower U.S.-based revenue. For international sales and expenditures denominated in foreign currencies, we are subject to risks associated with currency fluctuations. We utilize forward and option contracts to hedge our foreign currency exposure associated with certain assets and liabilities as well as anticipated foreign currency cash flows. All balance sheet hedges are marked to market through earnings every quarter, while gains and losses on cash flow hedges are


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recorded in other comprehensive income until forecasted transactions occur, at which time, such realized gains and losses are recognized in earnings. These hedges attempt to reduce, but do not always entirely eliminate, the impact of currency exchange movements. Factors that could have an impact on the effectiveness of our hedging program include the accuracy of forecasts and the volatility of foreign currency markets. There can be no assurance that such hedging strategies will be successful and that currency exchange rate fluctuations will not have a material adverse effect on our operating results.
 
Additional risks inherent in our international business activities generally include, among others, longer accounts receivable payment cycles and difficulties in managing international operations. Such factors could materially and adversely affect our future international sales and, consequently, our operating results.
 
We receive significant tax benefits from sales to our non-U.S. customers. These benefits are contingent upon existing tax regulations in the U.S. and in the countries in which our international operations are located. Future changes in domestic or international tax regulations could adversely affect our ability to continue to realize these tax benefits. Our effective tax rate could also be adversely affected by different and evolving interpretations of existing law or regulations. Potentially adverse tax consequences could negatively impact the operating and financial results from international operations. International operations currently benefit from a tax ruling concluded in the Netherlands.
 
Although operating results have not been materially and adversely affected by seasonality in the past, because of the significant seasonal effects experienced within the industry, particularly in Europe, our future operating results could be materially and adversely affected by seasonality.
 
We cannot assure you that we will be able to maintain or increase international market demand for our products.
 
If we fail to manage our expanding business effectively, our operating results could be materially and adversely affected.
 
Our future operating results depend to a large extent on management’s ability to successfully manage expansion and growth, including but not limited to, expanding international operations, forecasting revenues, addressing new markets, controlling expenses, implementing and enhancing infrastructure, systems and processes, and managing our assets.
 
The growth in our business requires that we invest in people, processes and systems to best optimize our revenue growth and long term profitability. However, growth in our sales or continued expansion in the scope of our operations could strain our current management, financial, manufacturing and other systems, and may require us to implement and improve those systems. If we experience any problems with any improvement or expansion of these systems, procedures or controls, or if these systems, procedures or controls are not designed, implemented or improved in a cost-effective and timely manner, our operations may be materially and adversely affected. In addition, any failure to implement, improve and expand such systems, procedures, and controls in a timely and efficient manner could harm our growth strategy and materially and adversely affect our financial condition and ability to achieve our business objectives.
 
In addition, an unexpected decline in the growth rate of revenues without a corresponding and timely reduction in expense growth or a failure to manage other aspects of growth could materially and adversely affect our operating results.
 
A significant percentage of our expenses are fixed, which could materially and adversely affect our net income.
 
Our expense levels are based in part on our expectations as to future sales, and a significant percentage of our expenses are fixed. As a result, if sales levels are below expectations or previously higher levels, net income will be disproportionately affected in a material and adverse manner.


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The marketplace for our common stock has fluctuated significantly in the past and will likely continue to do so in the future.
 
The market price for our common stock has experienced substantial volatility in the past, and several factors could cause the price to fluctuate substantially in the future. These factors include but are not limited to:
 
  •  Fluctuations in our operating results
 
  •  Fluctuations in the valuation of companies perceived by investors to be comparable to us
 
  •  Economic developments in the storage and data management market as a whole
 
  •  International conflicts and acts of terrorism
 
  •  A shortfall in revenues or earnings compared to securities analysts’ expectations
 
  •  Changes in analysts’ recommendations or projections
 
  •  Announcements of new products, applications, or product enhancements by us or our competitors
 
  •  Changes in our relationships with our suppliers, customers, and channel and strategic partners
 
  •  General market conditions
 
In addition, the stock market has experienced volatility that has particularly affected the market prices of equity securities of many technology companies. Additionally, certain macroeconomic factors such as changes in interest rates, the market climate for the technology sector, and levels of corporate spending on information technology could also have an impact on the trading price of our stock. As a result, the market price of our common stock may fluctuate significantly in the future, and any broad market decline, as well as our own operating results, may materially and adversely affect the market price of our common stock.
 
We depend on the ability of our personnel, raw materials, equipment and products to move reasonably unimpeded around the world. Our business could be materially and adversely affected as a result of a natural disaster, terrorist acts, or other catastrophic events.
 
Any political, military, world health (e.g., SARS, Avian Flu) or other issue which hinders this movement or restricts the import or export of materials could lead to significant business disruptions. Furthermore, any strike, economic failure, or other material disruption cased by fire, floods, hurricanes, power loss, power shortages, telecommunications failures, break-ins, and similar events could also adversely affect our ability to conduct business. If such disruptions result in cancellations of customer orders or contribute to a general decrease in economic activity or corporate spending on information technology, or directly impact our marketing, manufacturing, financial and logistics functions, our results of operations and financial condition could be materially adversely affected. In addition, our headquarters are located in Northern California, an area susceptible to earthquakes. If any significant disaster were to occur, our ability to operate our business could be impaired.
 
We depend on attracting and retaining qualified technical and sales personnel. If we are unable to attract and retain such personnel, our operating results could be materially and adversely impacted.
 
Our continued success depends, in part, on our ability to identify, attract, motivate, and retain qualified technical and sales personnel. Because our future success is dependent on our ability to continue to enhance and introduce new products, we are particularly dependent on our ability to identify, attract, motivate, and retain qualified engineers with the requisite education, backgrounds, and industry experience. Competition for qualified engineers, particularly in Silicon Valley, can be intense. The loss of the services of a significant number of our engineers or salespeople could be disruptive to our development efforts or business relationships and could materially and adversely affect our operating results.


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Undetected software, hardware errors, or failures found in new products may result in loss of or delay in market acceptance of our products, which could increase our costs and reduce our revenues.
 
Our products may contain undetected software, hardware errors, or failures when first introduced or as new versions are released. Despite testing by us and by current and potential customers, errors may not be found in new products until after commencement of commercial shipments, resulting in loss of or delay in market acceptance, which could materially and adversely affect our operating results.
 
If we are unable to protect our intellectual property, we may be subject to increased competition that could materially and adversely affect our operating results.
 
Our success depends significantly upon our proprietary technology. We rely on a combination of copyright and trademark laws, trade secrets, confidentiality procedures, contractual provisions, and patents to protect our proprietary rights. We seek to protect our software, documentation, and other written materials under trade secret, copyright, and patent laws, which afford only limited protection. Some U.S. trademarks and some U.S.-registered trademarks are registered internationally as well. We will continue to evaluate the registration of additional trademarks as appropriate. We generally enter into confidentiality agreements with our employees and with our resellers, strategic partners, and customers. We currently have multiple U.S. and international patent applications pending and multiple U.S. patents issued. The pending applications may not be approved, and if patents are issued, such patents may be challenged. If such challenges are brought, the patents may be invalidated. We cannot assure you that we will develop proprietary products or technologies that are patentable, that any issued patent will provide us with any competitive advantages or will not be challenged by third parties, or that the patents of others will not materially and adversely affect our ability to do business.
 
Litigation may be necessary to protect our proprietary technology. Any such litigation may be time-consuming and costly. Despite our efforts to protect our proprietary rights, unauthorized parties may attempt to copy aspects of our products or to obtain and use information that we regard as proprietary. In addition, the laws of some foreign countries do not protect proprietary rights to as great an extent as do the laws of the United States. We cannot assure you that our means of protecting our proprietary rights will be adequate or that our competitors will not independently develop similar technology, duplicate our products, or design around patents issued to us or other intellectual property rights of ours.
 
We are subject to intellectual property infringement claims. We may, from time to time, receive claims that we are infringing third parties’ intellectual property rights. Third parties may in the future claim infringement by us with respect to current or future products, patents, trademarks, or other proprietary rights. We expect that companies in the appliance market will increasingly be subject to infringement claims as the number of products and competitors in our industry segment grows and the functionality of products in different industry segments overlaps. Any such claims could be time-consuming, result in costly litigation, cause product shipment delays, require us to redesign our products, or require us to enter into royalty or licensing agreements, any of which could materially and adversely affect our operating results. Such royalty or licensing agreements, if required, may not be available on terms acceptable to us or at all.
 
Our business is subject to increasingly complex corporate governance, public disclosure, accounting, and tax requirements that have increased both our costs and the risk of noncompliance.
 
Because our common stock is publicly traded, we are subject to certain rules and regulations of federal, state, and financial market exchange entities charged with the protection of investors and the oversight of companies whose securities are publicly traded. These entities, including the Public Company Accounting Oversight Board, the SEC, and NASDAQ, have implemented new requirements and regulations and continue developing additional regulations and requirements in response to recent corporate scandals and laws enacted by Congress, most notably the Sarbanes-Oxley Act of 2002. Our efforts to comply with these new regulations have resulted in, and are likely to continue resulting in, increased general and administrative expenses and diversion of management time and attention from revenue-generating activities to compliance activities.
 
We have recently completed our evaluation of our internal controls over financial reporting as required by Section 404 of the Sarbanes-Oxley Act of 2002. Although our assessment, testing, and evaluation resulted in our


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conclusion that as of April 30, 2006, our internal controls over financial reporting were effective, we cannot predict the outcome of our testing in future periods. If our internal controls are ineffective in future periods, our business and reputation could be harmed. We may incur additional expenses and commitment of management’s time in connection with further evaluations, either of which could materially increase our operating expenses and accordingly reduce our net income.
 
Because new and modified laws, regulations and standards are subject to varying interpretations in many cases due to their lack of specificity, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This evolution may result in continuing uncertainty regarding compliance matters and additional costs necessitated by ongoing revisions to our disclosure and governance practices.
 
Our results of operations could vary as a result of the methods, estimates and judgments we use in applying our accounting policies.
 
The methods, estimates and judgments we use in applying our accounting policies have a significant impact on our results of operations (see “Critical Accounting Policies and Estimates” in Part I, Item 2 of this Form 10-Q). Such methods, estimates and judgments are, by their nature, subject to substantial risks, uncertainties and assumptions, and factors may arise over time that lead us to change our methods, estimates and judgments. Changes in those methods, estimates and judgments could significantly affect our results of operations. In particular, the calculation of stock-based compensation expense under SFAS No. 123R requires us to use valuation methodologies (which were not developed for use in valuing employee stock options) and make a number of assumptions, estimates and conclusions regarding matters such as expected forfeitures, expected volatility of our share price and the exercise behavior of our employees. Changes in these variables could impact our stock-based compensation expense and have a significant impact on our gross margins, R&D and S&M, G&A expenses and stock price. If another party asserts that the fair value of our employee stock options is misstated, securities class action litigation could be brought against us, or the market price of our common stock could decline, or both could occur. As a result, we could incur significant losses, and our operating results may be below our expectations and those of investors and stock market analysts.
 
Our ability to forecast earnings is limited by the impact of new accounting requirements such as SFAS No. 123R.
 
The Financial Accounting Standards Board requires companies to recognize the fair value of stock options and other share-based payment compensation to employees as compensation expense in the statement of income. Option pricing models require the input of highly subjective assumptions, including the expected stock price volatility, expected life and forfeiture rate. We have chosen to base our estimate of future volatility using the implied volatility of traded options to purchase the Company’s common stock as permitted by SAB No. 107. As of May 1, 2006, the contractual life of our stock options has been shortened to seven years from ten years for options issued on or after this date, and to the extent that the shorter life changes employees’ exercise behavior, it may change the expected term of an option going forward. SFAS No. 123R requires us to use estimated forfeitures, and therefore, the adoption of SFAS No. 123R could have a material impact on the timing of and, based on the accuracy of estimates of future actual forfeitures, the amount of stock compensation expense. Given the unpredictable nature of the “Black Scholes” variables and other management assumptions such as number of options to be granted, underlying strike price and associated income tax impacts, it is very difficult to estimate stock compensation expense for any given quarter or year. Any changes in these highly subjective assumptions may significantly impact our ability to make accurate forecasts of future earnings.
 
We are subject to various environmental laws and regulations that could impose substantial costs upon us and may adversely affect our business.
 
We may from time to time be subject to various state, federal and international laws and regulations governing the environment, including those restricting the presence of certain substances in electronic products and making producers of those products financially responsible for the collection, treatment, recycling and disposal of certain products. For example, the European Union (“EU”) has enacted the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (“RoHS”) and the Waste Electrical and Electronic Equipment


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(“WEEE”) directives. “RoHS” prohibits the use of certain substances, including mercury and lead, in certain products put on the market after July 1, 2006. The WEEE directive obligates parties that place electrical and electronic equipment onto the market in the EU to put a clearly identifiable mark on the equipment, register with and report to EU member countries regarding distribution of the equipment, and provide a mechanism to take back and properly dispose of the equipment. Each EU member country has enacted, or is expected to soon enact, legislation clarifying what is and what is not covered by the WEEE directive in that country. We have met the requirements of the “RoHS” and WEEE directives, including adhering to the July 1, 2006 deadline for meeting “RoHS” material composition restrictions. Similar laws and regulations have been or may be enacted in other regions.
 
We face increasing complexity in our product design, logistics and procurement operations as we adjust to new and upcoming requirements relating to the materials composition of our products. Other environmental regulations may require us to reengineer products to utilize components which are more environmentally compatible and such reengineering and component substitution may result in additional costs to us. Notwithstanding our ability or willingness to reengineer products or pay additional costs, we still may be adversely affected if the materials and components that we need are unavailable to us. In addition, if we were found to be in violation of these laws, we could be subject to governmental fines, any noncompliant products may be banned from European markets and our customers may incur liability. Although we do not anticipate any material adverse effects based on the nature of our operations and the effect of such laws, there is no assurance that such existing laws or future laws will not have an adverse effect on us.
 
The U.S. government has contributed to our revenue growth and become an important customer for us. However, government demand is unpredictable, and there is no guarantee of future revenue growth from the U.S. government.
 
The U.S. government has become an important customer for the storage market and for us. Government agencies are subject to budgetary processes and expenditure constraints that could lead to delays or decreased capital expenditures in IT spending on infrastructures. If the government or individual agencies within the government reduce or shift their capital spending pattern, our financial results may be harmed. We cannot assure you that revenue from the U.S. government will continue to grow in the future.
 
Item 2.   Unregistered Sales of Equity Securities and Use of Proceeds
 
The table below sets forth activity in the first quarter of fiscal 2007:
 
                                 
                Total Number of
       
                Shares Purchased
    Approximate Dollar Value of
 
          Average
    as Part of
    Shares That May Yet be
 
    Shares
    Price Paid
    the Repurchase
    Purchased Under the
 
Period
  Purchased     per Share     Program(1)     Repurchase Program(2)  
 
April 30 2006 - May 27, 2006
        $       31,996,359     $ 405,655,787  
May 28, 2006 - June 24, 2006
    5,706,184     $ 33.44       37,702,543     $ 214,834,305  
June 25, 2006 - July 28, 2006
    854,614     $ 34.14       38,557,157     $ 185,655,818  
                                 
Total
    6,560,798     $ 33.53       38,557,157     $ 185,655,818  
                                 
 
 
(1) This amount represented total number of shares purchased under our publicly announced repurchase programs since inception.
 
(2) Through July 28, 2006, the Board of Directors had authorized the repurchase of up to $650,000,000 in shares of our outstanding common stock. At July 28, 2006, $185,655,818 remained available for future repurchases. The stock repurchase program may be suspended or discontinued at any time.
 
Item 3.   Defaults Upon Senior Securities
 
None


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Item 4.   Submission of Matters to a Vote of Security Holders
 
None
 
Item 5.   Other Information
 
None
 
Item 6.   Exhibits
 
         
  2 .1(6)   Agreement and Plan of Merger of Network Appliance, Inc. (a Delaware corporation) and Network Appliance, Inc. (a California corporation).
  2 .2(9)   Agreement and Plan of Merger dated as of November 3, 2003, by and among Network Appliance, Inc., Nagano Sub, Inc., and Spinnaker Networks, Inc.
  2 .3(9)   Amendment to Merger Agreement, dated as of February 9, 2004, by and among Network Appliance, Inc., Nagano Sub, Inc., and Spinnaker Networks, Inc.
  2 .4(15)   Agreement and Plan of Merger and Reorganization, dated as of June 15, 2005, by and among Network Appliance Inc., Dolphin Acquisition Corp, and Decru, Inc.
  3 .1(6)   Certificate of Incorporation of the Company.
  3 .2(6)   Bylaws of the Company.
  3 .3(16)   Certificate of Amendment to the Bylaws of the Company.
  4 .1(6)   Reference is made to Exhibits 3.1 and 3.2.
  10 .1(14)*   The Company’s amended and Restated Employee Stock Purchase Plan.
  10 .2(14)*   The Company’s Amended and Restated 1995 Stock Incentive Plan.
  10 .3(2)   The Company’s Special Non-Officer Stock Option Plan.
  10 .4(7)*   The Company’s Amended and Restated 1999 Stock Incentive Plan.
  10 .5(3)†   OEM Distribution and License Agreement, dated October 27, 1998, by and between Dell Products L.P. and the Company.
  10 .6(4)   OEM Distribution and License Agreement, dated November 6, 1998, by and between Fujitsu Limited and the Company.
  10 .15(5)†   Patent Cross License Agreement dated December 11, 2000, by and between Intel Corporation and the Company.
  10 .16(1)*   Form of Indemnification Agreement entered into between the Company and its directors and officers.
  10 .17(8)   Short Form Termination of Operative Documents, dated April 24, 2002, by and between BNP Leasing Corporation and the Company.
  10 .18(10)*   Spinnaker Networks, Inc. 2000 Stock Plan.
  10 .19(12)*   Alacritus, Inc. 2005 Stock Plan.
  10 .20(11)*   The Company’s Fiscal Year 2005 Incentive Compensation Plan.
  10 .21(13)*   The Company’s Deferred Compensation Plan.
  10 .22(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan.
  10 .23(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan (Chairman of the Board or any Board Committee Chairperson).
  10 .24(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan (Restricted Stock Agreement).
  10 .25(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Restricted Stock Unit Agreement).
  10 .26(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan.
  10 .27(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Change of Control).


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  10 .28(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (China).
  10 .29(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employee Director Automatic Stock Option — Annual).
  10 .30(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employee Director Automatic Stock Option — Initial).
  10 .31(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (France).
  10 .32(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (India).
  10 .33(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (United Kingdom).
  10 .34(17)   Form of Stock Option Grant Notice and Option Agreement under the Decru, Inc. Amended and Restated 2001 Equity Incentive Plan and the 2001 Equity Incentive Plan filed under Attachment II.
  10 .35(17)   Form of Stock Option Grant Notice and Option Agreement under the Decru, Inc. 2001 Equity Incentive Plan and the 2001 Equity Incentive Plan filed under Attachment II.
  10 .36(17)   Form of Early Exercise Stock Purchase Agreement under the Decru, Inc. 2001 Equity Incentive Plan.
  10 .37(17)   Form of Restricted Stock Bonus Grant Notice and Agreement under the Decru, Inc. 2001 Equity Incentive Plan.
  10 .38(18)   Asset Purchase Agreement dated June 20, 2003, by and between Auspex Systems, Inc. and the Company.
  10 .39(19)   Purchase and Sale Agreement dated July 27, 2004 by and between Cisco Systems, Inc. and the Company.
  10 .40(20)   Closing Certificate and Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .41(20)   Construction Management Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .42(20)   Lease Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .43(20)   Purchase Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .44(20)   Ground Lease, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .45(22)   Loan Agreement, dated March 31, 2006, by and between the Lenders party hereto and JP Morgan Chase Bank and Network Appliance Global Ltd.
  31 .1   Certification of the Chief Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
  31 .2   Certification of the Chief Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
  32 .1   Certification of Chief Executive Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
  32 .2   Certification of Chief Financial Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
 
 
(1) Previously filed as an exhibit to the Company’s Registration Statement on Form S-1 (No. 33-97864).
 
(2) Previously filed as an exhibit with the Company’s Annual Report on Form 10-K dated July 23, 1997.
 
(3) Previously filed as an exhibit with the Company’s Quarterly Report on Form 10-Q dated December 11, 1998.
 
(4) Previously filed as an exhibit with the Company’s Quarterly Report on Form 10-Q dated March 11, 1999.
 
(5) Previously filed as an exhibit with the Company’s Quarterly Report on Form 10-Q dated March 12, 2001.
 
(6) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated December 4, 2001.

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(7) Previously filed as an exhibit with the Company’s Proxy Statement dated July 15, 2004.
 
(8) Previously filed as an exhibit with the Company’s Annual Report on Form 10-K dated June 28, 2002.
 
(9) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated February 27, 2004.
 
(10) Previously filed as an exhibit with the Company’s Form S-8 registration statement dated March 1, 2004.
 
(11) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated May 18, 2005.
 
(12) Previously filed as an exhibit to the Company’s Form S-8 registration statement dated June 2, 2005.
 
(13) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated July 7, 2005.
 
(14) Previously filed as an exhibit to the Company’s Proxy Statement dated July 8, 2005.
 
(15) Previously filed as an exhibit to the Company’s Quarterly Report on Form 10-Q dated September 2, 2005.
 
(16) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated September 1, 2006.
 
(17) Previously filed as an exhibit to the Company’s Form S-8 registration statement dated September 2, 2005.
 
(18) Previously filed as an exhibit to the Company’s Quarterly Report on Form 10-Q dated September 3, 2003.
 
(19) Previously filed as an exhibit to the Company’s Quarterly Report on Form 10-Q dated August 31, 2004.
 
(20) Previously filed as an exhibit to the Company’s Quarterly Report on Form 10-Q dated March 7, 2006.
 
(21) Previously filed as an exhibit to the Company’s Annual Report on Form 10-K dated July 8, 2005.
 
(22) Previously filed as an exhibit to the Company’s Annual Report on Form 10-K dated July 11, 2006.
 
 † Specified portions of this agreement have been omitted and have been filed separately with the Commission pursuant to a request for confidential treatment.
 
 * Identifies management plan or compensatory plan or arrangement.


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SIGNATURE
 
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
NETWORK APPLIANCE INC.
(Registrant)
 
/s/  STEVEN J. GOMO
Steven J. Gomo
Executive Vice President of Finance and
Chief Financial Officer
 
Date: September 5, 2006


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EXHIBIT INDEX
 
         
  2 .1(6)   Agreement and Plan of Merger of Network Appliance, Inc. (a Delaware corporation) and Network Appliance, Inc. (a California corporation).
  2 .2(9)   Agreement and Plan of Merger dated as of November 3, 2003, by and among Network Appliance, Inc., Nagano Sub, Inc., and Spinnaker Networks, Inc.
  2 .3(9)   Amendment to Merger Agreement, dated as of February 9, 2004, by and among Network Appliance, Inc., Nagano Sub, Inc., and Spinnaker Networks, Inc.
  2 .4(15)   Agreement and Plan of Merger and Reorganization, dated as of June 15, 2005, by and among Network Appliance Inc., Dolphin Acquisition Corp, and Decru, Inc.
  3 .1(6)   Certificate of Incorporation of the Company.
  3 .2(6)   Bylaws of the Company.
  3 .3(16)   Certificate of Amendment to the Bylaws of the Company.
  4 .1(6)   Reference is made to Exhibits 3.1 and 3.2.
  10 .1(14)*   The Company’s amended and Restated Employee Stock Purchase Plan.
  10 .2(14)*   The Company’s Amended and Restated 1995 Stock Incentive Plan.
  10 .3(2)   The Company’s Special Non-Officer Stock Option Plan.
  10 .4(7)*   The Company’s Amended and Restated 1999 Stock Incentive Plan.
  10 .5(3)†   OEM Distribution and License Agreement, dated October 27, 1998, by and between Dell Products L.P. and the Company.
  10 .6(4)   OEM Distribution and License Agreement, dated November 6, 1998, by and between Fujitsu Limited and the Company.
  10 .15(5)†   Patent Cross License Agreement dated December 11, 2000, by and between Intel Corporation and the Company.
  10 .16(1)*   Form of Indemnification Agreement entered into between the Company and its directors and officers.
  10 .17(8)   Short Form Termination of Operative Documents, dated April 24, 2002, by and between BNP Leasing Corporation and the Company.
  10 .18(10)*   Spinnaker Networks, Inc. 2000 Stock Plan.
  10 .19(12)*   Alacritus, Inc. 2005 Stock Plan.
  10 .20(11)*   The Company’s Fiscal Year 2005 Incentive Compensation Plan.
  10 .21(13)*   The Company’s Deferred Compensation Plan.
  10 .22(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan.
  10 .23(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan (Chairman of the Board or any Board Committee Chairperson).
  10 .24(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan (Restricted Stock Agreement).
  10 .25(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Restricted Stock Unit Agreement).
  10 .26(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan.
  10 .27(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Change of Control).
  10 .28(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (China).
  10 .29(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employee Director Automatic Stock Option — Annual).
  10 .30(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employee Director Automatic Stock Option — Initial).
  10 .31(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (France).


Table of Contents

         
  10 .32(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (India).
  10 .33(21)   Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (United Kingdom).
  10 .34(17)   Form of Stock Option Grant Notice and Option Agreement under the Decru, Inc. Amended and Restated 2001 Equity Incentive Plan and the 2001 Equity Incentive Plan filed under Attachment II.
  10 .35(17)   Form of Stock Option Grant Notice and Option Agreement under the Decru, Inc. 2001 Equity Incentive Plan and the 2001 Equity Incentive Plan filed under Attachment II.
  10 .36(17)   Form of Early Exercise Stock Purchase Agreement under the Decru, Inc. 2001 Equity Incentive Plan.
  10 .37(17)   Form of Restricted Stock Bonus Grant Notice and Agreement under the Decru, Inc. 2001 Equity Incentive Plan.
  10 .38(18)   Asset Purchase Agreement dated June 20, 2003, by and between Auspex Systems, Inc. and the Company.
  10 .39(19)   Purchase and Sale Agreement dated July 27, 2004 by and between Cisco Systems, Inc. and the Company.
  10 .40(20)   Closing Certificate and Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .41(20)   Construction Management Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .42(20)   Lease Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .43(20)   Purchase Agreement, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .44(20)   Ground Lease, dated December 15, 2005, by and between BNP Leasing Corporation and the Company.
  10 .45(22)   Loan Agreement, dated March 31, 2006, by and between the Lenders party hereto and JP Morgan Chase Bank and Network Appliance Global Ltd.
  31 .1   Certification of the Chief Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
  31 .2   Certification of the Chief Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
  32 .1   Certification of Chief Executive Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
  32 .2   Certification of Chief Financial Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, dated September 5, 2006.
 
 
(1) Previously filed as an exhibit to the Company’s Registration Statement on Form S-1 (No. 33-97864).
 
(2) Previously filed as an exhibit with the Company’s Annual Report on Form 10-K dated July 23, 1997.
 
(3) Previously filed as an exhibit with the Company’s Quarterly Report on Form 10-Q dated December 11, 1998.
 
(4) Previously filed as an exhibit with the Company’s Quarterly Report on Form 10-Q dated March 11, 1999.
 
(5) Previously filed as an exhibit with the Company’s Quarterly Report on Form 10-Q dated March 12, 2001.
 
(6) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated December 4, 2001.
 
(7) Previously filed as an exhibit with the Company’s Proxy Statement dated July 15, 2004.
 
(8) Previously filed as an exhibit with the Company’s Annual Report on Form 10-K dated June 28, 2002.
 
(9) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated February 27, 2004.
 
(10) Previously filed as an exhibit with the Company’s Form S-8 registration statement dated March 1, 2004.
 
(11) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated May 18, 2005.
 
(12) Previously filed as an exhibit to the Company’s Form S-8 registration statement dated June 2, 2005.
 
(13) Previously filed as an exhibit with the Company’s Current Report on Form 8-K dated July 7, 2005.