As filed with the Securities and Exchange Commission on November 26, 2001 Registration No. 333-_______________ ================================================================================ SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ---------- FORM S-8 REGISTRATION STATEMENT Under The Securities Act of 1933 ---------- NETWORK APPLIANCE, INC. (Exact name of registrant as specified in its charter) DELAWARE 77-0307520 (State or other jurisdiction (IRS Employer Identification No.) of incorporation or organization) 495 EAST JAVA DRIVE, SUNNYVALE, CA 94089 (Address of principal executive offices) (Zip Code) ---------- NETWORK APPLIANCE, INC. 1999 STOCK OPTION PLAN NETWORK APPLIANCE, INC. EMPLOYEE STOCK PURCHASE PLAN --------------------- (Full title of the Plans) ---------- DANIEL J. WARMENHOVEN CHIEF EXECUTIVE OFFICER AND DIRECTOR NETWORK APPLIANCE, INC. 495 EAST JAVA DRIVE, SUNNYVALE, CA 94089 (Name and address of agent for service) (408) 822-6000 (Telephone number, including area code, of agent for service) ---------- CALCULATION OF REGISTRATION FEE ======================================================================================================= Proposed Proposed Title of Maximum Maximum Securities Amount Offering Aggregate Amount of to be to be Price Offering Registration Registered Registered (1) per Share Price Fee - ------------------------------------------------------------------------------------------------------- Network Appliance, Inc. 1999 Stock Option Plan 13,400,000 shares $14.895(2) $199,593,000.00(2) $49,898.25 Common Stock, $0.001 par value Network Appliance, Inc. Employee Stock Purchase Plan 3,000,000 shares $14.895(2) $ 44,685,000.00(2) $11,171.25 Common Stock, $0.001 par value - ------------------------------------------------------------------------------------------------------- Total: 16,400,000 shares Aggregate Registration Fee: $61,069.50 ======================================================================================================= (1) This Registration Statement shall also cover any additional shares of Registrant's Common Stock which become issuable under the Network Appliance, Inc. 1999 Stock Option Plan or Network Appliance, Inc. Employee Stock Purchase Plan by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without the Registrant's receipt of consideration which results in an increase in the number of the Registrant's outstanding shares of Common Stock. (2) Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of 1933, as amended, on the basis of the average of the high and low selling prices per share of Common Stock of Network Appliance, Inc. on November 21, 2001, as reported by the Nasdaq National Market.

PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT Item 3. Incorporation of Documents by Reference Network Appliance, Inc. (the "Registrant") hereby incorporates by reference into this Registration Statement the following documents previously filed with the Securities and Exchange Commission (the "Commission"): (a) The Registrant's Annual Report on Form 10-K for the fiscal year ended April 27, 2001, filed with the Commission on July 26, 2001, pursuant to Section 13 of the Securities Exchange Act of 1934, as amended (the "1934 Act"); (b) The Registrant's Quarterly Report on Form 10-Q for the fiscal quarter ended July 27, 2001, filed with the Commission on September 10, 2001; and (c) The Registrant's Registration Statement No. 000-27130 on Form 8-A filed with the Commission on November 1, 1995, in which there is described the terms, rights and provisions applicable to the Registrant's Common Stock. All reports and definitive proxy or information statements filed pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after the date of this Registration Statement and prior to the filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which de-registers all securities then remaining unsold shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing of such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement. Item 4. Description of Securities Not Applicable. Item 5. Interests of Named Experts and Counsel Not Applicable. Item 6. Indemnification of Directors and Officers Section 145 of the Delaware General Corporation Law authorizes a court to award or a corporation's board of directors to grant indemnification to directors and officers in terms sufficiently broad to permit the indemnification under some circumstances for liabilities (including reimbursement for expenses incurred) arising under the 1933 Act. Article IX of the Certificate of Incorporation of the Registrant provides that, subject to Delaware law, its directors will not be personally liable for monetary damages for breach of their fiduciary duties to the Registrant and its stockholders. This provision does not eliminate any director's fiduciary duties and in appropriate circumstances, equitable remedies such as injunctive or other forms of non-monetary relief will remain available under Delaware law. The provision also does not affect a director's responsibilities under any other law, such as the federal securities laws or state or federal environmental laws. Item 7. Exemption from Registration Claimed Not Applicable. II-1

Item 8. Exhibits Exhibit Number Exhibit - -------------- ------- 4 Instruments Defining the Rights of Stockholders. Reference is made to Registrant's Registration Statement No. 000-27130 on Form 8-A, together with the amendments and exhibits thereto, which are incorporated herein by reference pursuant to Items 3(c). 5 Opinion and consent of Brobeck, Phleger & Harrison LLP. 23.1 Independent Auditors' Consent. 23.2 Consent of Brobeck, Phleger & Harrison LLP is contained in Exhibit 5. 24 Power of Attorney. Reference is made to page II-3 of this Registration Statement. 99.1 Network Appliance, Inc. 1999 Stock Option Plan (As Amended and Restated Through October 18, 2001). 99.2 Network Appliance, Inc. Employee Stock Purchase Plan (As Amended and Restated Effective October 18, 2001). Item 9. Undertakings A. The undersigned Registrant hereby undertakes: (1) to file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement: (i) to include any prospectus required by Section 10(a)(3) of the 1933 Act, (ii) to reflect in the prospectus any facts or events arising after the effective date of this Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in this Registration Statement and (iii) to include any material information with respect to the plan of distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement; provided, however, that clauses (1)(i) and (1)(ii) shall not apply if the information required to be included in a post-effective amendment by those clauses is contained in periodic reports filed by the Registrant pursuant to Section 13 or Section 15(d) of the 1934 Act that are incorporated by reference into this Registration Statement; (2) that for the purpose of determining any liability under the 1933 Act each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; and (3) to remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the Network Appliance, Inc. 1999 Stock Option Plan or the Network Appliance, Inc. Employee Stock Purchase Plan. B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the 1933 Act, each filing of the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the 1934 Act that is incorporated by reference into this Registration Statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. C. Insofar as indemnification for liabilities arising under the 1933 Act may be permitted to directors, officers or controlling persons of the Registrant pursuant to the indemnification provisions summarized in Item 6 or otherwise, the Registrant has been advised that, in the opinion of the Commission, such indemnification is against public policy as expressed in the 1933 Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer, or controlling person of the Registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the 1933 Act and will be governed by the final adjudication of such issue. II-2

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8, and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Sunnyvale, State of California on this 19th day of November, 2001. NETWORK APPLIANCE, INC. By: /s/ Daniel J. Warmenhoven ------------------------------------ Daniel J. Warmenhoven Chief Executive Officer and Director POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Daniel J. Warmenhoven and Jeffry R. Allen, and each of them, as such person's true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for such person and in such person's name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement, and to file same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as such person might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his or her substitutes, may lawfully do or cause to be done by virtue thereof. Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated: Signature Title Date - --------- ----- ---- /s/ Daniel J. Warmenhoven Chief Executive Officer November 19, 2001 - ------------------------------ and Director Daniel J. Warmenhoven (Principal Executive Officer) /s/ Jeffry R. Allen Executive Vice President, Finance November 19, 2001 - ------------------------------ and Operations, Chief Financial Jeffry R. Allen Officer (Principal Financial and Accounting Officer) /s/ Donald T. Valentine Chairman of the Board and Director November 19, 2001 - ------------------------------ Donald T. Valentine /s/ Sanjiv Ahuja Director November 19, 2001 - ------------------------------ Sanjiv Ahuja II-3

/s/ Carol A. Bartz Director November 19, 2001 - ------------------------------ Carol A. Bartz Director November , 2001 - ------------------------------ Michael R. Hallman /s/ Dr. Sachio Semmoto Director November 19, 2001 - ------------------------------ Dr. Sachio Semmoto /s/ Robert T. Wall Director November 19, 2001 - ------------------------------ Robert T. Wall II-4

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 EXHIBITS TO FORM S-8 UNDER SECURITIES ACT OF 1933 NETWORK APPLIANCE, INC.

EXHIBIT INDEX Exhibit Number Exhibit - -------------- ------- 4 Instruments Defining the Rights of Stockholders. Reference is made to Registrant's Registration Statement No. 000-27130 on Form 8-A, together with the amendments and exhibits thereto, which are incorporated herein by reference pursuant to Item 3(c). 5 Opinion and consent of Brobeck, Phleger & Harrison LLP. 23.1 Independent Auditors' Consent. 23.2 Consent of Brobeck, Phleger & Harrison LLP is contained in Exhibit 5. 24 Power of Attorney. Reference is made to page II-3 of this Registration Statement. 99.1 Network Appliance, Inc. 1999 Stock Option Plan (As Amended and Restated Through October 18, 2001). 99.2 Network Appliance, Inc. Employee Stock Purchase Plan (As Amended and Restated Effective October 18, 2001).

EXHIBIT 5 OPINION AND CONSENT OF BROBECK, PHLEGER & HARRISON LLP November 20, 2001 Network Appliance, Inc. 495 East Java Drive Sunnyvale, CA 94089 Re: Network Appliance, Inc. - Registration Statement for Offering of an Aggregate of 16,400,000 Shares of Common Stock Dear Ladies and Gentlemen: We have acted as counsel to Network Appliance, Inc., a Delaware corporation (the "Company"), in connection with the registration on Form S-8 (the "Registration Statement") under the Securities Act of 1933, as amended, of (a) an additional 13,400,000 shares of Company's common stock reserved for issuance under the Company's 1999 Stock Option Plan (the "Option Plan") and (b) an additional 3,000,000 shares of the Company's common stock reserved for issuance under the Company's Employee Stock Purchase Plan (the "Purchase Plan"). This opinion is being furnished in accordance with the requirements of Item 8 of Form S-8 and Item 601(b)(5)(i) of Regulation S-K. We have reviewed the Company's charter documents and the corporate proceedings taken by the Company with respect to the establishment and amendment of the Option Plan and the Purchase Plan. Based on such review, we are of the opinion that, if, as and when the shares of the Company's common stock are issued and sold (and the consideration therefor received) pursuant to (a) the provisions of (a) stock option agreements duly authorized under the Option Plan and in accordance with the Registration Statement and (b) stock purchase rights duly authorized under the Purchase Plan and in accordance with the Registration Statement, such shares will be duly authorized, legally issued, fully paid and nonassessable. We consent to the filing of this opinion letter as Exhibit 5 to the Registration Statement. This opinion letter is rendered as of the date first written above and we disclaim any obligation to advise you of facts, circumstances, events or developments which hereafter may be brought to our attention and which may alter, affect or modify the opinion expressed herein. Our opinion is expressly limited to the matters set forth above and we render no opinion, whether by implication or otherwise, as to any other matters relating to the Company, the Option Plan, the Purchase Plan or the shares of the Company's common stock issuable under such plans. Very truly yours, /s/ Brobeck, Phleger & Harrison LLP BROBECK, PHLEGER & HARRISON LLP

EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of Network Appliance, Inc. on Form S-8 of our report dated May 14, 2001, appearing in the Annual Report on Form 10-K of Network Appliance, Inc. for the year ended April 27, 2001. /s/ Deloitte & Touche LLP DELOITTE & TOUCHE LLP San Jose, California November 19, 2001

EXHIBIT 99.1 NETWORK APPLIANCE, INC. 1999 STOCK OPTION PLAN AS AMENDED AND RESTATED THROUGH OCTOBER 18, 2001 ARTICLE ONE GENERAL PROVISIONS I. PURPOSE OF THE PLAN This 1999 Stock Option Plan is intended to promote the interests of Network Appliance, Inc., a California corporation, by providing eligible persons with the opportunity to acquire a proprietary interest, or otherwise increase their proprietary interest, in the Corporation as an incentive for them to remain in the service of the Corporation. Capitalized terms shall have the meanings assigned to such terms in the attached Appendix. All share numbers in this document reflect (i) the 2-for-1 split of the Common Stock effected on December 20, 1999 and (ii) the 2-for-1 split of the Common Stock effected on March 22, 2000. II. STRUCTURE OF THE PLAN A. The Plan shall be divided into two separate equity programs: (i) the Discretionary Option Grant Program under which eligible persons may, at the discretion of the Plan Administrator, be granted options to purchase shares of Common Stock, and (ii) the Automatic Option Grant Program under which non-employee Board members shall automatically receive option grants at periodic intervals to purchase shares of Common Stock. B. The provisions of Articles One and Four shall apply to all equity programs under the Plan and shall accordingly govern the interests of all persons under the Plan.

III. ADMINISTRATION OF THE PLAN A. The Primary Committee shall have sole and exclusive authority to administer the Discretionary Option Grant Program with respect to Section 16 Insiders. Administration of the Discretionary Option Grant Program with respect to all other eligible persons may, at the Board's discretion, be vested in the Primary Committee or a Secondary Committee, or the Board may retain the power to administer that program with respect to all such persons. B. Members of the Primary Committee or any Secondary Committee shall serve for such period of time as the Board may determine and may be removed by the Board at any time. The Board may also at any time terminate the functions of any Secondary Committee and reassume all powers and authority previously delegated to such committee. C. Each Plan Administrator shall, within the scope of its administrative functions under the Plan, have full power and authority to establish such rules and regulations as it may deem appropriate for proper administration of the Discretionary Option Grant Program and to make such determinations under, and issue such interpretations of, the provisions of such programs and any outstanding options thereunder as it may deem necessary or advisable. Decisions of the Plan Administrator within the scope of its administrative functions under the Plan shall be final and binding on all parties who have an interest in the Discretionary Option Grant Program under its jurisdiction or any stock option thereunder. D. Service on the Primary Committee or the Secondary Committee shall constitute service as a Board member, and members of each such committee shall accordingly be entitled to full indemnification and reimbursement as Board members for their service on such committee. No member of the Primary Committee or the Secondary Committee shall be liable for any act or omission made in good faith with respect to the Plan or any option grants under the Plan. E. Administration of the Automatic Option Grant Program shall be self-executing in accordance with the terms of that program, and no Plan Administrator shall exercise any discretionary functions with respect to option grants made thereunder. IV. ELIGIBILITY A. The persons eligible to participate in the Discretionary Option Grant Program are as follows: (i) Employees, and (ii) consultants and other independent advisors who provide services to the Corporation (or any Parent or Subsidiary). 2

B. Each Plan Administrator shall, within the scope of its administrative jurisdiction under the Plan, have full authority (subject to the provisions of the Plan) to determine which eligible persons are to receive option grants under the Discretionary Option Grant Program, the time or times when such option grants are to be made, the number of shares to be covered by each such grant, the status of the granted option as either an Incentive Option or a Non-Statutory Option, the time or times when each option is to become exercisable, the vesting schedule (if any) applicable to the option shares and the maximum term for which the option is to remain outstanding. C. Only non-employee Board members shall be eligible to participate in the Automatic Option Grant Program. V. STOCK SUBJECT TO THE PLAN A. The stock issuable under the Plan shall be shares of authorized but unissued or reacquired Common Stock, including shares repurchased by the Corporation on the open market. The maximum number of shares of Common Stock which may be issued over the term of the Plan shall not exceed 41,600,000 shares. Such authorized share reserve is comprised of (i) the 13,200,000 shares of Common Stock initially authorized for issuance under the Plan, (ii) an additional increase of 15,000,000 shares authorized by the Board on August 17, 2000 and approved by the shareholders at the 2000 Annual Meeting, plus (iii) an additional increase of 13,400,000 shares authorized by the Board on August 9, 2001 and approved by the shareholders at the 2001 Annual Meeting. Such authorized share reserve shall be in addition to the number of shares of Common Stock reserved for issuance under the Corporation's 1995 Stock Incentive Plan and the Corporation's Special Non-Officer Stock Option Plan, and share issuances under this Plan shall not reduce or otherwise affect the number of shares of Common Stock available for issuance under the 1995 Stock Incentive Plan or the Special Non-Officer Stock Option Plan. In addition, share issuances under such plans shall not reduce or otherwise affect the number of shares of Common Stock available for issuance under this Plan. B. No one person participating in the Plan may receive stock options under the Plan for more than 3,000,000 shares of Common Stock in the aggregate per calendar year. C. Shares of Common Stock subject to outstanding options shall be available for subsequent issuance under the Plan to the extent (i) the options expire or terminate for any reason prior to exercise in full or (ii) the options are cancelled in accordance with the cancellation/regrant provisions of Article Two. In addition, any unvested shares issued under the Plan and subsequently repurchased by the Corporation, at the option exercise price paid per share, pursuant to the Corporation's repurchase rights under the Plan shall be added back to the number of shares of Common Stock reserved for issuance under the Plan and shall accordingly be available for reissuance through one or more subsequent option grants under the Plan. Should the exercise price of an option under the Plan be paid with shares of Common Stock or should shares of Common Stock otherwise issuable under the Plan be withheld by the Corporation in satisfaction of the withholding taxes incurred in connection with the exercise of an option or the 3

vesting of exercised option shares under the Plan, then the number of shares of Common Stock available for issuance under the Plan shall be reduced by the gross number of shares for which the option is exercised or the gross number of exercised option shares which vest, and not by the net number of shares of Common Stock issued to the holder of such option or exercised option shares. D. Should any change be made to the Common Stock by reason of any stock split, stock dividend, recapitalization, combination of shares, exchange of shares or other change affecting the outstanding Common Stock as a class without the Corporation's receipt of consideration, appropriate adjustments shall be made to (i) the maximum number and/or class of securities issuable under the Plan, (ii) the maximum number and/or class of securities for which any one person may be granted stock options per calendar year, (iii) the number and/or class of securities for which automatic option grants are to be made subsequently under the Automatic Option Grant Program and (iv) the number and/or class of securities and the exercise price per share in effect under each outstanding option in order to prevent the dilution or enlargement of benefits thereunder. The adjustments determined by the Plan Administrator shall be final, binding and conclusive. 4

ARTICLE TWO DISCRETIONARY OPTION GRANT PROGRAM I. OPTION TERMS Each option shall be evidenced by one or more documents in the form approved by the Plan Administrator; provided, however, that each such document shall comply with the terms specified below. Each document evidencing an Incentive Option shall, in addition, be subject to the provisions of the Plan applicable to such options. A. EXERCISE PRICE. 1. The exercise price per share shall be fixed by the Plan Administrator but shall not be less than one hundred percent (100%) of the Fair Market Value per share of Common Stock on the option grant date. 2. The exercise price shall become immediately due upon exercise of the option and shall be payable in one or more of the forms specified below: (i) cash or check made payable to the Corporation, (ii) shares of Common Stock held for the requisite period necessary to avoid a charge to the Corporation's earnings for financial reporting purposes and valued at Fair Market Value on the Exercise Date, or (iii) to the extent the option is exercised for vested shares, through a special sale and remittance procedure pursuant to which the Optionee shall concurrently provide irrevocable instructions to (a) a Corporation-designated brokerage firm to effect the immediate sale of the purchased shares and remit to the Corporation, out of the sale proceeds available on the settlement date, sufficient funds to cover the aggregate exercise price payable for the purchased shares plus all applicable Federal, state and local income and employment taxes required to be withheld by the Corporation by reason of such exercise and (b) the Corporation to deliver the certificates for the purchased shares directly to such brokerage firm in order to complete the sale transaction. Except to the extent such sale and remittance procedure is utilized, payment of the exercise price for the purchased shares must be made on the Exercise Date. B. EXERCISE AND TERM OF OPTIONS. Each option shall be exercisable at such time or times, during such period and for such number of shares as shall be determined by the Plan Administrator and set forth in the documents evidencing the option. However, no option shall have a term in excess of ten (10) years measured from the option grant date. 5

C. EFFECT OF TERMINATION OF SERVICE. 1. The following provisions shall govern the exercise of any options held by the Optionee at the time of cessation of Service or death: (i) Any option outstanding at the time of the Optionee's cessation of Service for any reason shall remain exercisable for such period of time thereafter as shall be determined by the Plan Administrator and set forth in the documents evidencing the option, but no such option shall be exercisable after the expiration of the option term. (ii) Any option exercisable in whole or in part by the Optionee at the time of death may be exercised subsequently by the personal representative of the Optionee's estate or by the person or persons to whom the option is transferred pursuant to the Optionee's will or in accordance with the laws of descent and distribution. (iii) During the applicable post-Service exercise period, the option may not be exercised in the aggregate for more than the number of vested shares for which the option is exercisable on the date of the Optionee's cessation of Service. Upon the expiration of the applicable exercise period or (if earlier) upon the expiration of the option term, the option shall terminate and cease to be outstanding for any vested shares for which the option has not been exercised. However, the option shall, immediately upon the Optionee's cessation of Service, terminate and cease to be outstanding to the extent the option is not otherwise at that time exercisable for vested shares. (iv) Should the Optionee's Service be terminated for Misconduct, then all outstanding options held by the Optionee shall terminate immediately and cease to be outstanding. 2. The Plan Administrator shall have the discretion, exercisable either at the time an option is granted or at any time while the option remains outstanding, to: (i) extend the period of time for which the option is to remain exercisable following the Optionee's cessation of Service from the period otherwise in effect for that option to such greater period of time as the Plan Administrator shall deem appropriate, but in no event beyond the expiration of the option term, and/or (ii) permit the option to be exercised, during the applicable post-Service exercise period, not only with respect to the number of vested shares of Common Stock for which such option is exercisable at the time of the Optionee's cessation of Service but also with respect to one or more additional installments in which the Optionee would have vested under the option had the Optionee continued in Service. 6

D. SHAREHOLDER RIGHTS. The holder of an option shall have no shareholder rights with respect to the shares subject to the option until such person shall have exercised the option, paid the exercise price and become a holder of record of the purchased shares. E. REPURCHASE RIGHTS. The Plan Administrator shall have the discretion to grant options which are exercisable for unvested shares of Common Stock. Should the Optionee cease Service while holding such unvested shares, the Corporation shall have the right to repurchase, at the exercise price paid per share, any or all of those unvested shares. The terms upon which such repurchase right shall be exercisable (including the period and procedure for exercise and the appropriate vesting schedule for the purchased shares) shall be established by the Plan Administrator and set forth in the document evidencing such repurchase right. F. LIMITED TRANSFERABILITY OF OPTIONS. During the lifetime of the Optionee, Incentive Options shall be exercisable only by the Optionee and shall not be assignable or transferable other than by will or by the laws of inheritance following the Optionee's death. However, Non-Statutory Options may be assigned in whole or in part during the Optionee's lifetime to one or more members of the Optionee's family or to a trust established exclusively for one or more such family members or the Optionee's former spouse, to the extent such assignment is in connection with the Optionee's estate plan, or to the Optionee's former spouse pursuant to a domestic relations order. The assigned portion may only be exercised by the person or persons who acquire a proprietary interest in the option pursuant to the assignment. The terms applicable to the assigned portion shall be the same as those in effect for the option immediately prior to such assignment and shall be set forth in such documents issued to the assignee as the Plan Administrator may deem appropriate. II. INCENTIVE OPTIONS The terms specified below shall be applicable to all Incentive Options. Except as modified by the provisions of this Section II, all the provisions of Articles One, Two and Four shall be applicable to Incentive Options. Options which are specifically designated as Non-Statutory Options when issued under the Plan shall not be subject to the terms of this Section II. A. ELIGIBILITY. Incentive Options may only be granted to Employees. B. DOLLAR LIMITATION. The aggregate Fair Market Value of the shares of Common Stock (determined as of the respective date or dates of grant) for which one or more options granted to any Employee under the Plan (or any other option plan of the Corporation or any Parent or Subsidiary) may for the first time become exercisable as Incentive Options during any one (1) calendar year shall not exceed the sum of One Hundred Thousand Dollars ($100,000). To the extent the Employee holds two (2) or more such options which become exercisable for the first time in the same calendar year, the foregoing limitation on the exercisability of such options as Incentive Options shall be applied on the basis of the order in which such options are granted. 7

C. 10% SHAREHOLDER. If any Employee to whom an Incentive Option is granted is a 10% Shareholder, then the exercise price per share shall not be less than one hundred ten percent (110%) of the Fair Market Value per share of Common Stock on the option grant date, and the option term shall not exceed five (5) years measured from the option grant date. III. CORPORATE TRANSACTION/CHANGE IN CONTROL A. Each option, to the extent outstanding under the Plan at the time of a Corporate Transaction but not otherwise exercisable for all the option shares, shall automatically accelerate so that each such option shall, immediately prior to the effective date of the Corporate Transaction, become exercisable for all of the shares of Common Stock at the time subject to such option and may be exercised for any or all of those shares as fully-vested shares of Common Stock. However, an outstanding option shall not become exercisable on such an accelerated basis if and to the extent: (i) such option is, in connection with the Corporate Transaction, to be assumed by the successor corporation (or parent thereof) or replaced with a comparable option to purchase shares of the capital stock of the successor corporation (or parent thereof), (ii) such option is to be replaced with a cash incentive program of the successor corporation which preserves the spread existing on the unvested option shares at the time of the Corporate Transaction and provides for subsequent payout in accordance with the same vesting schedule applicable to those option shares or (iii) the acceleration of such option is subject to other limitations imposed by the Plan Administrator at the time of the option grant. The determination of option comparability under clause (i) above shall be made by the Plan Administrator, and its determination shall be final, binding and conclusive. B. All outstanding repurchase rights shall also terminate automatically, and the shares of Common Stock subject to those terminated rights shall immediately vest in full, in the event of any Corporate Transaction, except to the extent: (i) those repurchase rights are to be assigned to the successor corporation (or parent thereof) in connection with such Corporate Transaction or (ii) such accelerated vesting is precluded by other limitations imposed by the Plan Administrator at the time the repurchase right is issued. C. Immediately following the consummation of the Corporate Transaction, all outstanding options shall terminate and cease to be outstanding, except to the extent assumed by the successor corporation (or parent thereof). D. Each option which is assumed in connection with a Corporate Transaction shall be appropriately adjusted, immediately after such Corporate Transaction, to apply to the number and class of securities which would have been issuable to the Optionee in consummation of such Corporate Transaction had the option been exercised immediately prior to such Corporate Transaction. Appropriate adjustments to reflect such Corporate Transaction shall also be made to (i) the exercise price payable per share under each outstanding option, provided the aggregate exercise price payable for such securities shall remain the same, (ii) the maximum number and/or class of securities available for issuance over the remaining term of the Plan and (iii) the maximum number and/or class of securities for which any one person may be granted stock options under the Plan per calendar year. 8

E. The Plan Administrator shall have full power and authority to grant options under the Plan which will automatically accelerate in whole or in part in the event the Optionee's Service subsequently terminates by reason of an Involuntary Termination within a designated period (not to exceed twelve (12) months) following the effective date of any Corporate Transaction in which those options are assumed or replaced and do not otherwise accelerate. Any options so accelerated shall remain exercisable for fully-vested shares until the earlier of (i) the expiration of the option term or (ii) the expiration of the one (1)-year period measured from the effective date of the Involuntary Termination. In addition, the Plan Administrator may provide that one or more of the Corporation's outstanding repurchase rights with respect to shares held by the Optionee at the time of such Involuntary Termination shall immediately terminate in whole or in part, and the shares subject to those terminated rights shall accordingly vest at that time. F. The Plan Administrator shall have full power and authority to grant options under the Plan which will automatically accelerate in whole or in part in the event the Optionee's Service subsequently terminates by reason of an Involuntary Termination within a designated period (not to exceed twelve (12) months) following the effective date of any Change in Control. Each option so accelerated shall remain exercisable for fully-vested shares until the earlier of (i) the expiration of the option term or (ii) the expiration of the one (1)-year period measured from the effective date of the Involuntary Termination. In addition, the Plan Administrator may provide that one or more of the Corporation's outstanding repurchase rights with respect to shares held by the Optionee at the time of such Involuntary Termination shall immediately terminate in whole or in part, and the shares subject to those terminated rights shall accordingly vest at that time. G. The portion of any Incentive Option accelerated in connection with a Corporate Transaction or Change in Control shall remain exercisable as an Incentive Option only to the extent the applicable One Hundred Thousand Dollar limitation is not exceeded. To the extent such dollar limitation is exceeded, the accelerated portion of such option shall be exercisable as a Non-Qualified Option under the Federal tax laws. H. The outstanding options shall in no way affect the right of the Corporation to adjust, reclassify, reorganize or otherwise change its capital or business structure or to merge, consolidate, dissolve, liquidate or sell or transfer all or any part of its business or assets. IV. CANCELLATION AND REGRANT OF OPTIONS The Plan Administrator shall have the authority to effect, at any time and from time to time, with the consent of the affected option holders, the cancellation of any or all outstanding options under the Plan and to grant in substitution new options covering the same or different number of shares of Common Stock but with an exercise price per share based on the Fair Market Value per share of Common Stock on the new grant date. However, any such option cancellation/regrant program shall be subject to the following two limitations: 9

(i) only options held by Employees who are neither executive officers of the Corporation nor members of the Board may be so cancelled and regranted; and (ii) the total number of shares subject to options which are so cancelled and regranted from time to time pursuant to this Section IV shall not in the aggregate exceed ten percent (10%) of the total number of shares of Common Stock authorized for issuance under the Plan. 10

ARTICLE THREE AUTOMATIC OPTION GRANT PROGRAM On August 17, 2000, the Board approved the following changes to the Automatic Option Grant Program which became effective when approved by the shareholders at the 2000 Annual Meeting: (i) reduced the number of shares of Common Stock for which option grants are to be made to new non-employee Board members under the Automatic Option Grant Program from 160,000 shares (as adjusted to reflect the two splits of the Common Stock which have occurred since the implementation of the Plan) to 40,000 shares and (ii) reduced the number of shares of Common Stock for which option grants are to be made to continuing non-employee Board members under the Automatic Option Grant Program from 40,000 shares (as adjusted to reflect the two splits of the Common Stock which have occurred since the implementation of the Plan) to 15,000 shares. On August 9, 2001, the Board approved the following changes to the Automatic Option Grant Program which became effective with shareholder approval at the 2001 Annual Meeting: (i) increase the number of shares of Common Stock for which option grants are to be made to new non-employee Board members under the Automatic Option Grant Program from 40,000 shares to 55,000 shares and (ii) modify the vesting schedule applicable to each such option grants from four (4) successive equal annual installments to the vesting of 25,000 shares after one (1) year of Board service and the balance in three (3) successive equal annual installments thereafter. I. OPTION TERMS A. GRANT DATES. Option grants shall be made on the dates specified below: 1. Each individual who is first elected or appointed as a non-employee Board member on or after the date of the 2000 Annual Shareholders Meeting and prior to the date of the 2001 Annual Shareholders Meeting shall automatically be granted, on the date of such initial election or appointment, a Non-Statutory Option to purchase 40,000 shares of Common Stock, provided such individual has not previously been in the employ of the Corporation (or any Parent or Subsidiary). Each individual who is first elected or appointed as a non-employee Board member at any time on or after the date of the 2001 Annual Shareholders Meeting shall automatically be granted, on the date of such initial election or appointment, a Non-Statutory Option to purchase 55,000 shares of Common Stock, provided such individual has not previously been in the employ of the Corporation (or any Parent or Subsidiary). 2. On the date of each Annual Shareholders Meeting, beginning with the 2000 Annual Meeting, each individual who is to continue to serve as a non-employee Board member shall automatically be granted a Non-Statutory Option to purchase 15,000 shares of Common Stock, provided such individual has served as a non-employee Board member for at least six (6) months. There shall be no limit on the number of such 15,000-share option grants any one non-employee Board member may receive over his or her period of Board service. 11

3. Shareholder approval of the 2001 Restatement shall constitute pre-approval of each option grant made under this Automatic Option Grant Program on or after the date of the 2001 Annual Meeting and the subsequent exercise of that option in accordance with the terms and conditions of this Article Three and the stock option agreement evidencing such grant. 4. The Automatic Option Grant Program under this Plan supersedes and replaces the Automatic Option Grant Program previously in effect for the non-employee Board members under the Corporation's 1995 Stock Incentive Plan. That latter program terminated upon shareholder approval of the Plan at the 1999 Annual Shareholders Meeting, and no further option grants shall be made to the non-employee Board members under that program. All options granted to the non-employee Board members on or after the date of the 1999 Annual Shareholders Meeting, whether upon their initial election or appointment to the Board or upon their re-election at one or more of the Corporation's subsequent Annual Shareholder Meetings, shall be effected solely and exclusively in accordance with the terms and provisions of this Article Three, as in effect from time to time. B. EXERCISE PRICE. 1. The exercise price per share shall be equal to one hundred percent (100%) of the Fair Market Value per share of Common Stock on the option grant date. 2. The exercise price shall be payable in one or more of the alternative forms authorized under the Discretionary Option Grant Program. Except to the extent the sale and remittance procedure specified thereunder is utilized, payment of the exercise price for the purchased shares must be made on the Exercise Date. C. OPTION TERM. Each option shall have a term of ten (10) years measured from the option grant date. D. EXERCISE AND VESTING OF OPTIONS. Each option shall be immediately exercisable for any or all of the option shares. However, any shares purchased under the option shall be subject to repurchase by the Corporation, at the exercise price paid per share, upon the Optionee's cessation of Board service prior to vesting in those shares. 1. The shares subject to each 40,000-share grant made to a newly elected or appointed non-employee Board member on or after the date of the 2000 Annual Shareholders Meeting and prior to the date of the 2001 Annual Shareholders Meeting shall vest, and the Corporation's repurchase right with respect to those shares shall lapse, in a series of four (4) successive equal annual installments over the Optionee's period of continued service as a Board member, with the first such installment to vest upon the Optionee's completion of one (1) year of Board service measured from the option grant date. 2. The shares subject to each 55,000-share grant made to a newly elected or appointed non-employee Board member on or after the date of the 2001 Annual Shareholders Meeting shall vest, and the Corporation's repurchase right with respect to those 12

shares shall lapse, as follows: (x) 25,000 shares shall vest upon the Optionee's completion of one (1) year of Board service measured from the option grant date, and (y) the balance of the shares shall vest in a series of three (3) successive equal annual installments upon the Optionee's completion of each additional year of Board service over the three (3) year-period measured from the first anniversary of the option grant date. 3. The shares subject to each annual 15,000-share grant shall vest, and the Corporation's repurchase right with respect to those shares shall lapse, upon the Optionee's continuation in Board service through the day immediately preceding the date of the next Annual Shareholders Meeting following the option grant date. E. EFFECT OF TERMINATION OF BOARD SERVICE. The following provisions shall govern the exercise of any options held by the Optionee at the time the Optionee ceases to serve as a Board member: (i) The Optionee (or, in the event of the Optionee's death, the personal representative of the Optionee's estate or the person or persons to whom the option is transferred pursuant to the Optionee's will or in accordance with the laws of descent and distribution) shall have a twelve (12)-month period following the date of such cessation of Board service in which to exercise each such option. (ii) During the twelve (12)-month exercise period, the option may not be exercised in the aggregate for more than the number of shares of Common Stock in which the Optionee is vested at the time of his or her cessation of Board service. (iii) Should the Optionee cease to serve as a Board member by reason of death or Permanent Disability, then all shares at the time subject to the option shall immediately vest so that such option may, during the twelve (12)-month exercise period following such cessation of Board service, be exercised for all or any portion of those shares as fully-vested shares of Common Stock. (iv) In no event shall the option remain exercisable after the expiration of the option term. Upon the expiration of the twelve (12)-month exercise period or (if earlier) upon the expiration of the option term, the option shall terminate and cease to be outstanding for any vested shares for which the option has not been exercised. However, the option shall, immediately upon the Optionee's cessation of Board service for any reason other than death or Permanent Disability, terminate and cease to be outstanding with respect to any and all shares in which the Optionee is not otherwise at that time vested. 13

II. CORPORATE TRANSACTION/CHANGE IN CONTROL A. The shares of Common Stock subject to each outstanding option at the time of a Corporate Transaction but not otherwise vested shall automatically vest in full so that each such option shall, immediately prior to the effective date of that Corporate Transaction, become fully exercisable for all of the shares of Common Stock at the time subject to such option and may be exercised for all or any portion of those shares as fully-vested shares of Common Stock. Immediately following the consummation of the Corporate Transaction, each automatic option grant shall terminate and cease to be outstanding, except to the extent assumed by the successor corporation (or parent thereof). B. The shares of Common Stock subject to each outstanding option at the time of a Change in Control but not otherwise vested shall automatically vest in full so that each such option shall, immediately prior to the effective date of that Change in Control, become fully exercisable for all of the shares of Common Stock at the time subject to such option and may be exercised for all or any portion of those shares as fully-vested shares of Common Stock. Each such option shall remain exercisable for such fully-vested option shares until the expiration or sooner termination of the option term. C. All repurchase rights of the Corporation outstanding under the Automatic Option Grant Program at the time of a Corporate Transaction or Change in Control shall automatically terminate at that time, and the shares of Common Stock subject to those terminated rights shall immediately vest. D. Each option which is assumed in connection with a Corporate Transaction shall be appropriately adjusted, immediately after such Corporate Transaction, to apply to the number and class of securities which would have been issuable to the Optionee in consummation of such Corporate Transaction had the option been exercised immediately prior to such Corporate Transaction. Appropriate adjustments shall also be made to the exercise price payable per share under each outstanding option, provided the aggregate exercise price payable for such securities shall remain the same. E. The grant of options under the Automatic Option Grant Program shall in no way affect the right of the Corporation to adjust, reclassify, reorganize or otherwise change its capital or business structure or to merge, consolidate, dissolve, liquidate or sell or transfer all or any part of its business or assets. III. REMAINING TERMS The remaining terms of each option granted under the Automatic Option Grant Program shall be the same as the terms in effect for option grants made under the Discretionary Option Grant Program. 14

ARTICLE FOUR MISCELLANEOUS I. TAX WITHHOLDING A. The Corporation's obligation to deliver shares of Common Stock upon the exercise of stock options or the issuance or vesting of such shares under the Plan shall be subject to the satisfaction of all applicable Federal, state and local income and employment tax withholding requirements. B. The Plan Administrator may, in its discretion, provide any or all holders of Non-Statutory Options or unvested shares of Common Stock under the Plan (other than the options granted or the shares issued under the Automatic Option Grant Program) with the right to use shares of Common Stock in satisfaction of all or part of the Withholding Taxes to which such holders become subject in connection with the exercise of their options or the vesting of their shares. Such right may be provided to any such holder in either or both of the following formats: (i) Stock Withholding: The election to have the Corporation withhold, from the shares of Common Stock otherwise issuable upon the exercise of such Non-Statutory Option or the vesting of such shares, a portion of those shares with an aggregate Fair Market Value equal to the percentage of the Withholding Taxes (not to exceed one hundred percent (100%)) designated by the holder. (ii) Stock Delivery: The election to deliver to the Corporation, at the time the Non-Statutory Option is exercised or the shares vest, one or more shares of Common Stock previously acquired by such holder (other than in connection with the option exercise or share vesting triggering the Withholding Taxes) with an aggregate Fair Market Value equal to the percentage of the Withholding Taxes (not to exceed one hundred percent (100%)) designated by the holder. II. EFFECTIVE DATE AND TERM OF THE PLAN The Plan became effective on the Plan Effective Date and shall remain in effect until the earliest of (i) August 16, 2009, (ii) the date on which all shares available for issuance under the Plan shall have been issued as fully-vested shares pursuant to option exercises under the Plan or (iii) the termination of all outstanding options in connection with a Corporate Transaction. Upon such Plan termination, all outstanding stock options and unvested stock issuances made pursuant to option exercises shall continue to have force and effect in accordance with the provisions of the documents evidencing such options or issuances. 15

III. AMENDMENT OF THE PLAN A. The Board shall have complete and exclusive power and authority to amend or modify the Plan in any or all respects, subject to any shareholder approval which may be required pursuant to applicable laws or regulations, provided, however, that the Board may not, without shareholder approval, (i) increase the number of shares of Common Stock authorized for issuance under the Plan, or (ii) materially increase the benefits offered to participants under the 1999 Plan. No amendment or modification shall adversely affect any rights and obligations with respect to options or unvested shares of Common Stock at the time outstanding under the Plan unless the Optionee or holder of such unvested shares consents to such amendment or modification. B. The Plan was amended on August 17, 2000 to increase the number of shares of Common Stock authorized for issuance under the Plan by an additional 15,000,000 shares. The amendment was approved by the shareholders at the 2000 Annual Meeting, and no option grants were made on the basis of the 15,000,000-share increase, until such shareholder approval was obtained. C. The Plan was amended on August 9, 2001 to: (i) increase the number of shares of Common Stock authorized for issuance under the Plan by an additional 13,400,000 shares, (ii) increase the number of shares of Common Stock for which option grants are to be made to newly elected or appointed non-employee Board members under the Automatic Option Grant Program from 40,000 shares to 55,000 shares and (iii) modify the vesting schedule applicable to such option grants from four (4) successive equal annual installments to the vesting of 25,000 shares after one (1) year of Board service and the balance in three (3) successive equal annual installments. Such amendment was approved by the shareholders at the 2001 Annual Meeting, and no options grants were made on the basis of the 13,400,000-share increase or the amendments to the Automatic Option Grant Program until such shareholder approval was obtained. D. Options to purchase shares of Common Stock may be granted under the Discretionary Option Grant Program in excess of the number of shares then available for issuance under the Plan, provided any excess shares actually issued under such program are held in escrow until there is obtained shareholder approval of an amendment sufficiently increasing the number of shares of Common Stock available for issuance under the Plan. If such shareholder approval is not obtained within twelve (12) months after the date the first such excess grants are made, then (i) any unexercised options granted on the basis of such excess shares shall terminate and cease to be outstanding and (ii) the Corporation shall promptly refund to the Optionees the exercise price paid for any excess shares issued under the Plan and held in escrow, together with interest (at the applicable Short Term Federal Rate) for the period the shares were held in escrow, and such shares shall thereupon be automatically cancelled and cease to be outstanding. 16

IV. REGULATORY APPROVALS A. The implementation of the Plan, the granting of any option under the Plan and the issuance of any shares of Common Stock upon the exercise of such option shall be subject to the Corporation's procurement of all approvals and permits required by regulatory authorities having jurisdiction over the Plan, the options granted under it and the shares of Common Stock issued pursuant to it. B. No shares of Common Stock or other assets shall be issued or delivered under the Plan unless and until there shall have been compliance with all applicable requirements of Federal and state securities laws, including the filing and effectiveness of the Form S-8 registration statement for the shares of Common Stock issuable under the Plan, and all applicable listing requirements of any stock exchange (or the Nasdaq National Market, if applicable) on which Common Stock is then listed for trading. V. USE OF PROCEEDS Any cash proceeds received by the Corporation from the sale of shares of Common Stock under the Plan shall be used for general corporate purposes. VI. NO EMPLOYMENT/SERVICE RIGHTS Nothing in the Plan shall confer upon the Optionee any right to continue in Service for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Corporation (or any Parent or Subsidiary employing or retaining such person) or of the Optionee, which rights are hereby expressly reserved by each, to terminate such person's Service at any time for any reason, with or without cause. 17

APPENDIX The following definitions shall be in effect under the Plan: A. AUTOMATIC OPTION GRANT PROGRAM shall mean the automatic option grant program in effect under Article Three of the Plan. B. BOARD shall mean the Corporation's Board of Directors. C. CHANGE IN CONTROL shall mean a change in ownership or control of the Corporation effected through either of the following transactions: (i) the acquisition, directly or indirectly, by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation), of beneficial ownership (within the meaning of Rule 13d-3 of the 1934 Act) of securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation's outstanding securities pursuant to a tender or exchange offer made directly to the Corporation's shareholders, or (ii) a change in the composition of the Board over a period of thirty-six (36) consecutive months or less such that a majority of the Board members ceases, by reason of one or more contested elections for Board membership, to be comprised of individuals who either (A) have been Board members continuously since the beginning of such period or (B) have been elected or nominated for election as Board members during such period by at least a majority of the Board members described in clause (A) who were still in office at the time the Board approved such election or nomination. D. CODE shall mean the Internal Revenue Code of 1986, as amended. E. COMMON STOCK shall mean the Corporation's common stock. F. CORPORATE TRANSACTION shall mean either of the following shareholder-approved transactions to which the Corporation is a party: (i) a merger or consolidation in which securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation's outstanding securities are transferred to a person or persons different from the persons holding those securities immediately prior to such transaction; or (ii) the sale, transfer or other disposition of all or substantially all of the Corporation's assets in complete liquidation or dissolution of the Corporation. A-1

G. CORPORATION shall mean Network Appliance, Inc., a California corporation, and any corporate successor to all or substantially all of the assets or voting stock of Network Appliance, Inc. which shall by appropriate action adopt the Plan. H. DISCRETIONARY OPTION GRANT PROGRAM shall mean the discretionary option grant program in effect under Article Two of the Plan. I. EMPLOYEE shall mean an individual who is in the employ of the Corporation (or any Parent or Subsidiary), subject to the control and direction of the employer entity as to both the work to be performed and the manner and method of performance. J. EXERCISE DATE shall mean the date on which the Corporation shall have received written notice of the option exercise. K. FAIR MARKET VALUE per share of Common Stock on any relevant date shall be determined in accordance with the following provisions: (i) If the Common Stock is at the time traded on the Nasdaq National Market, then the Fair Market Value shall be the closing selling price per share of Common Stock on the date in question, as such price is reported by the National Association of Securities Dealers on the Nasdaq National Market and published in The Wall Street Journal. If there is no closing selling price for the Common Stock on the date in question, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists. (ii) If the Common Stock is at the time listed on any Stock Exchange, then the Fair Market Value shall be the closing selling price per share of Common Stock on the date in question on the Stock Exchange determined by the Plan Administrator to be the primary market for the Common Stock, as such price is officially quoted in the composite tape of transactions on such exchange and published in The Wall Street Journal. If there is no closing selling price for the Common Stock on the date in question, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists. L. INCENTIVE OPTION shall mean an option which satisfies the requirements of Code Section 422. M. INVOLUNTARY TERMINATION shall mean the termination of the Service of any individual which occurs by reason of: (i) such individual's involuntary dismissal or discharge by the Corporation for reasons other than Misconduct, or (ii) such individual's voluntary resignation following (A) a change in his or her position with the Corporation which materially reduces his or her level of responsibility, (B) a reduction in his or her level of compensation A-2

(including base salary, fringe benefits and participation in corporate-performance based bonus or incentive programs) by more than fifteen percent (15%) or (C) a relocation of such individual's place of employment by more than fifty (50) miles, provided and only if such change, reduction or relocation is effected by the Corporation without the individual's consent. N. MISCONDUCT shall mean the commission of any act of fraud, embezzlement or dishonesty by the Optionee, any unauthorized use or disclosure by such person of confidential information or trade secrets of the Corporation (or any Parent or Subsidiary), or any other intentional misconduct by such person adversely affecting the business or affairs of the Corporation (or any Parent or Subsidiary) in a material manner. The foregoing definition shall not be deemed to be inclusive of all the acts or omissions which the Corporation (or any Parent or Subsidiary) may consider as grounds for the dismissal or discharge of any Optionee or other person in the Service of the Corporation (or any Parent or Subsidiary). O. 1934 ACT shall mean the Securities Exchange Act of 1934, as amended. P. NON-STATUTORY OPTION shall mean an option not intended to satisfy the requirements of Code Section 422. Q. OPTIONEE shall mean any person to whom an option is granted under the Plan. R. PARENT shall mean any corporation (other than the Corporation) in an unbroken chain of corporations ending with the Corporation, provided each corporation in the unbroken chain (other than the Corporation) owns, at the time of the determination, stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. S. PERMANENT DISABILITY OR PERMANENTLY DISABLED shall mean the inability of the Optionee or the Participant to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment expected to result in death or to be of continuous duration of twelve (12) months or more. However, solely for the purposes of the Automatic Option Grant Program, Permanent Disability or Permanently Disabled shall mean the inability of the non-employee Board member to perform his or her usual duties as a Board member by reason of any medically determinable physical or mental impairment expected to result in death or to be of continuous duration of twelve (12) months or more. T. PLAN shall mean the Corporation's 1999 Stock Option Plan, as set forth in this document. U. PLAN ADMINISTRATOR shall mean the particular entity, whether the Primary Committee, the Board or the Secondary Committee, which is authorized to administer the Discretionary Option Grant Program with respect to one or more classes of eligible persons, to the extent such entity is carrying out its administrative functions under such program with respect to the persons under its jurisdiction. A-3

V. PLAN EFFECTIVE DATE shall mean August 17, 1999, the date on which the Board adopted the Plan. W. PRIMARY COMMITTEE shall mean the committee of two (2) or more non-employee Board members appointed by the Board to administer the Discretionary Option Grant Program with respect to Section 16 Insiders. X. SECONDARY COMMITTEE shall mean a committee of two (2) or more Board members appointed by the Board to administer the Discretionary Option Grant Program with respect to eligible persons other than Section 16 Insiders. Y. SECTION 16 INSIDER shall mean an officer or director of the Corporation subject to the short-swing profit liabilities of Section 16 of the 1934 Act. Z. SERVICE shall mean the provision of services to the Corporation (or any Parent or Subsidiary) by a person in the capacity of an Employee, a non-employee member of the board of directors or a consultant or independent advisor, except to the extent otherwise specifically provided in the documents evidencing the option grant. AA. STOCK EXCHANGE shall mean either the American Stock Exchange or the New York Stock Exchange. BB. SUBSIDIARY shall mean any corporation (other than the Corporation) in an unbroken chain of corporations beginning with the Corporation, provided each corporation (other than the last corporation) in the unbroken chain owns, at the time of the determination, stock possessing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. CC. 10% SHAREHOLDER shall mean the owner of stock (as determined under Code Section 424(d)) possessing more than ten percent (10%) of the total combined voting power of all classes of stock of the Corporation (or any Parent or Subsidiary). DD. WITHHOLDING TAXES shall mean the Federal, state and local income and employment withholding taxes to which the holder of Non-Statutory Options or unvested shares of Common Stock becomes subject in connection with the exercise of those options or the vesting of those shares. A-4

EXHIBIT 99.2 NETWORK APPLIANCE, INC EMPLOYEE STOCK PURCHASE PLAN AS AMENDED AND RESTATED EFFECTIVE OCTOBER 18, 2001 I. PURPOSE OF THE PLAN This Employee Stock Purchase Plan is intended to promote the interests of Network Appliance, Inc. by providing eligible employees with the opportunity to acquire a proprietary interest in the Corporation through participation in a payroll-deduction based employee stock purchase plan designed to qualify under Section 423 of the Code. Capitalized terms herein shall have the meanings assigned to such terms in the attached Appendix. The provisions of this August 2001 restatement (the "2001 Restatement") shall become effective with the offering period commencing December 3, 2001 and shall not have any force or effect prior to such date. All share numbers which appear in this 2001 Restatement reflect (i) the two-for-one split of the Common Stock effected on December 19, 1997, (ii) the two-for-one split of the Common Stock effected on December 22, 1998, (iii) the two-for-one split of the Common Stock effected on December 21, 1999, and (iv) the two-for-one split of the Common Stock effected on March 23, 2000. II. ADMINISTRATION OF THE PLAN The Plan Administrator shall have full authority to interpret and construe any provision of the Plan and to adopt such rules and regulations for administering the Plan as it may deem necessary in order to comply with the requirements of Code Section 423. Decisions of the Plan Administrator shall be final and binding on all parties having an interest in the Plan. III. STOCK SUBJECT TO PLAN A. The stock purchasable under the Plan shall be shares of authorized but unissued or reacquired Common Stock, including shares of Common Stock purchased on the open market. The maximum number of shares of Common Stock which may be issued over the term of the Plan shall not exceed Eleven Million Two Hundred Thousand (11,200,000) shares, including (i) an increase of One Million Six Hundred Thousand (1,600,000) shares authorized by the Board on August 11, 1998 and approved by the shareholders on October 8, 1998, (ii) an increase of One Million (1,000,000) shares authorized by the Board on August 17, 1999 and approved by the shareholders on October 26, 1999, plus (iii) an increase of Three Million (3,000,000) shares authorized by the Board on August 9, 2001 and approved by the shareholders at the 2001 Annual Meeting held on October 18, 2001.

B. Should any change be made to the Common Stock by reason of any stock split, stock dividend, recapitalization, combination of shares, exchange of shares or other change affecting the outstanding Common Stock as a class without the Corporation's receipt of consideration, appropriate adjustments shall be made to (i) the maximum number and class of securities issuable under the Plan, (ii) the maximum number and class of securities purchasable per Participant on any one Purchase Date, (iii) the maximum number and class of securities purchasable in total by all Participants on any one Purchase Date under the Plan and (iv) the number and class of securities and the price per share in effect under each outstanding purchase right in order to prevent the dilution or enlargement of benefits thereunder. IV. OFFERING PERIODS A. Shares of Common Stock shall be offered for purchase under the Plan through a series of overlapping offering periods until such time as (i) the maximum number of shares of Common Stock available for issuance under the Plan shall have been purchased or (ii) the Plan shall have been sooner terminated. B. Each offering period shall be of such duration (not to exceed twenty-four (24) months) as determined by the Plan Administrator prior to the start date of such offering period. Offering periods shall commence at semi-annual intervals on the first business day of June and December each year over the remaining term of the Plan. Accordingly, two (2) separate offering periods shall commence in each calendar year the 2001 Restatement remains in existence. However, the initial offering period under the 2001 Restatement shall begin on the first business day in December 2001 and end on the last business day in November 2003. NOTE: Prior to December 3, 2001, shares of Common Stock shall be offered for purchase under the Plan through a series of successive offering periods, each with a maximum duration of twenty-four (24) months. The last such offering period began on the first business day in December 1999 and shall terminate on November 30, 2001 C. Each offering period shall be comprised of a series of one or more successive Purchase Intervals. Purchase Intervals shall run from the first business day in June each year to the last business day in November of the same year and from the first business day in December each year to the last business day in May of the following year. 2

D. Should the Fair Market Value per share of Common Stock on any Purchase Date within any offering period beginning on or after December 3, 2001 be less than the Fair Market Value per share of Common Stock on the start date of that offering period, then the individuals participating in such offering period shall, immediately after the purchase of shares of Common Stock on their behalf on such Purchase Date, be transferred from that offering period and automatically enrolled in the next offering period commencing after such Purchase Date. V. ELIGIBILITY A. Each individual who is an Eligible Employee on the start date of any offering period under the Plan may enter that offering period on such start date. However, an Eligible Employee may participate in only one offering period at a time. B. Except as otherwise provided in Section IV. D, an Eligible Employee must, in order to participate in the Plan for a particular offering period, complete the enrollment forms prescribed by the Plan Administrator (including a stock purchase agreement and a payroll deduction authorization form) and file such forms with the Plan Administrator (or its designate) on or before the start date of that offering period. VI. PAYROLL DEDUCTIONS A. The payroll deduction authorized by the Participant for purposes of acquiring shares of Common Stock during an offering period may be any multiple of one percent (1%) of the Cash Earnings paid to the Participant during each Purchase Interval within that offering period, up to a maximum of ten percent (10%). The deduction rate so authorized by a Participant shall continue in effect throughout the offering period, except to the extent such rate is changed in accordance with the following guidelines: (i) The Participant may, at any time during the offering period, reduce his or her rate of payroll deduction to become effective as soon as possible after filing the appropriate form with the Plan Administrator. The Participant may not, however, effect more than one (1) such reduction per Purchase Interval. (ii) The Participant may, prior to the commencement of any new Purchase Interval within the offering period, increase the rate of his or her payroll deduction by filing the appropriate form with the Plan Administrator. The new rate (which may not exceed the ten percent (10%) maximum) shall become effective as of the start date of the first Purchase Interval following the filing of such form. B. Payroll deductions on behalf of the Participant shall begin on the first pay day following the start date of the offering period in which he or she is enrolled and shall (unless sooner terminated by the Participant) continue through the pay day ending with or immediately prior to the last day of that offering period. The amounts so collected shall be credited to the 3

Participant's book account under the Plan, but no interest shall be paid on the balance from time to time outstanding in such account. The amounts collected from the Participant shall not be held in any segregated account or trust fund and may be commingled with the general assets of the Corporation and used for general corporate purposes. C. Payroll deductions shall automatically cease upon the Participant's withdrawal from the offering period or the termination of his or her purchase right in accordance with the provisions of the Plan. D. The Participant's acquisition of Common Stock under the Plan on any Purchase Date shall neither limit nor require the Participant's acquisition of Common Stock on any subsequent Purchase Date, whether within the same or a different offering period. E. The Plan Administrator shall have the discretion, exercisable prior to the start date of any offering period under the Plan, to determine whether the payroll deductions authorized by Participants during such offering period shall be calculated as a percentage of Base Salary or Cash Earnings. VII. PURCHASE RIGHTS A. GRANT OF PURCHASE RIGHT. A Participant shall be granted a separate purchase right for each offering period in which he or she is enrolled. The purchase right shall be granted on the start date of the offering period and shall provide the Participant with the right to purchase shares of Common Stock, in a series of successive installments during that offering period, upon the terms set forth below. The Participant shall execute a stock purchase agreement embodying such terms and such other provisions (not inconsistent with the Plan) as the Plan Administrator may deem advisable. Under no circumstances shall purchase rights be granted under the Plan to any Eligible Employee if such individual would, immediately after the grant, own (within the meaning of Code Section 424(d)) or hold outstanding options or other rights to purchase, stock possessing five percent (5%) or more of the total combined voting power or value of all classes of stock of the Corporation or any Corporate Affiliate. B. EXERCISE OF THE PURCHASE RIGHT. Each purchase right shall be automatically exercised in installments on each successive Purchase Date within the offering period, and shares of Common Stock shall accordingly be purchased on behalf of each Participant on each such Purchase Date. The purchase shall be effected by applying the Participant's payroll deductions for the Purchase Interval ending on such Purchase Date to the purchase of whole shares of Common Stock at the purchase price in effect for the Participant for that Purchase Date. 4

C. PURCHASE PRICE. The purchase price per share at which Common Stock will be purchased on the Participant's behalf on each Purchase Date within the particular offering period in which he or she is enrolled shall be equal to eighty-five percent (85%) of the lower of (i) the Fair Market Value per share of Common Stock on the start date of that offering period or (ii) the Fair Market Value per share of Common Stock on that Purchase Date. D. NUMBER OF PURCHASABLE SHARES. The number of shares of Common Stock purchasable by a Participant on each Purchase Date during the particular offering period in which he or she is enrolled shall be the number of whole shares obtained by dividing the amount collected from the Participant through payroll deductions during the Purchase Interval ending with that Purchase Date by the purchase price in effect for the Participant for that Purchase Date. However, the maximum number of shares of Common Stock purchasable per Participant on any one Purchase Date shall not exceed One Thousand Five Hundred (1,500) shares, subject to periodic adjustments in the event of certain changes in the Corporation's capitalization. The maximum number of shares of Common Stock purchasable in total by all participants on any one Purchase Date shall not exceed One Million (1,000,000) shares, subject to periodic adjustments in the event of certain changes in the Corporation's capitalization. However, the Plan Administrator shall have the discretionary authority, exercisable prior to the start of any offering period under the Plan, to increase or decrease the limitations to be in effect for the number of shares purchasable per Participant and in total by all Participants enrolled in that particular offering period on each Purchase Date which occurs during that offering period. E. EXCESS PAYROLL DEDUCTIONS. Any payroll deductions not applied to the purchase of shares of Common Stock on any Purchase Date because they are not sufficient to purchase a whole share of Common Stock shall be held for the purchase of Common Stock on the next Purchase Date. However, any payroll deductions not applied to the purchase of Common Stock by reason of the limitation on the maximum number of shares purchasable per Participant or in total by all Participants on the Purchase Date shall be promptly refunded. F. SUSPENSION OF PAYROLL DEDUCTIONS. In the event that a Participant is, by reason of the accrual limitations in Article VIII, precluded from purchasing additional shares of Common Stock on one or more Purchase Dates during the offering period in which he or she is enrolled, then no further payroll deductions shall be collected from such Participant with respect to those Purchase Dates. The suspension of such deductions shall not terminate the Participant's purchase right for the offering period in which he or she is enrolled, and payroll deductions shall automatically resume on behalf of such Participant once he or she is again able to purchase shares during that offering period in compliance with the accrual limitations of Article VIII. G. WITHDRAWAL FROM OFFERING PERIOD. The following provisions shall govern the Participant's withdrawal from an offering period under the Plan: (i) A Participant may withdraw from the offering period in which he or she is enrolled by filing the appropriate form with the Plan Administrator (or its designate) at any time prior to the next scheduled Purchase Date in the offering period, and no further payroll deductions shall be collected from the Participant with respect to that offering period. Any payroll deductions collected during the Purchase Interval in which such withdrawal occurs shall, at 5

the Participant's election, be immediately refunded or held for the purchase of shares on the next Purchase Date. If no such election is made at the time the Participant withdraws from the offering period, then the payroll deductions collected with respect to the Purchase Interval in which such withdrawal occurs shall be refunded as soon as possible. (ii) The Participant's withdrawal from the offering period shall be irrevocable, and the Participant may not subsequently rejoin that offering period. In order to resume participation in any subsequent offering period, such individual must re-enroll in the Plan (by making a timely filing of the prescribed enrollment forms) on or before the start date of that offering period. H. TERMINATION OF ELIGIBLE EMPLOYEE STATUS. Should the Participant cease to remain an Eligible Employee for any reason (including death, disability or change in status) while his or her purchase right remains outstanding, then that purchase right shall immediately terminate, and all of the Participant's payroll deductions for the Purchase Interval in which the purchase right so terminates shall be immediately refunded. However, should the Participant cease to remain in active service by reason of an approved unpaid leave of absence, then the Participant shall have the right, exercisable up until the last business day of the Purchase Interval in which such leave commences, to (a) withdraw all the payroll deductions collected to date on his or her behalf for that Purchase Interval or (b) have such funds held for the purchase of shares on his or her behalf on the next scheduled Purchase Date. In no event, however, shall any further payroll deductions be collected on the Participant's behalf during such leave. Upon the Participant's return to active service (i) within ninety (90) days following the commencement of such leave or (ii) prior to the expiration of any longer period for which such Participant's right to reemployment with the Corporation is guaranteed by either statute or contract, his or her payroll deductions under the Plan shall automatically resume at the rate in effect at the time the leave began, unless the Participant withdraws from the Plan prior to his or her return. An individual who returns to active employment following a leave of absence which exceeds in duration the applicable time period shall be treated as a new Employee for purposes of subsequent participation in the Plan and must accordingly re-enroll in the Plan (by making a timely filing of the prescribed enrollment forms) on or before the start date of any offering period in which he or she wishes to participate. I. CHANGE IN CONTROL. Each outstanding purchase right shall automatically be exercised, immediately prior to the effective date of any Change in Control, by applying the payroll deductions of each Participant for the Purchase Interval in which such Change in Control occurs to the purchase of whole shares of Common Stock at a purchase price per share equal to eighty-five percent (85%) of the lower of (i) the Fair Market Value per share of Common Stock on the start date of the offering period in which the Participant is enrolled at the time of such Change in Control or (ii) the Fair Market Value per share of Common Stock immediately prior to the effective date of such Change in Control. However, the applicable limitation on the number of shares of Common Stock purchasable per Participant shall continue to apply to any such purchase, but not the limitation applicable to the maximum number of shares of Common Stock purchasable in total by all Participants on any one Purchase Date. 6

The Corporation shall use its best efforts to provide at least ten (10) days prior written notice of the occurrence of any Change in Control, and Participants shall, following the receipt of such notice, have the right to terminate their outstanding purchase rights prior to the effective date of the Change in Control. J. PRORATION OF PURCHASE RIGHTS. Should the total number of shares of Common Stock to be purchased pursuant to outstanding purchase rights on any particular date exceed either (i) the maximum limitation on the number of shares purchasable in total by all Participants on such date or (ii) the number of shares then available for issuance under the Plan, the Plan Administrator shall make a pro-rata allocation of the available shares on a uniform and nondiscriminatory basis, and the payroll deductions of each Participant, to the extent in excess of the aggregate purchase price payable for the Common Stock pro-rated to such individual, shall be refunded. K. ASSIGNABILITY. The purchase right shall be exercisable only by the Participant and shall not be assignable or transferable by the Participant. L. SHAREHOLDER RIGHTS. A Participant shall have no shareholder rights with respect to the shares subject to his or her outstanding purchase right until the shares are purchased on the Participant's behalf in accordance with the provisions of the Plan and the Participant has become a holder of record of the purchased shares. VIII. ACCRUAL LIMITATIONS A. No Participant shall be entitled to accrue rights to acquire Common Stock pursuant to any purchase right outstanding under this Plan if and to the extent such accrual, when aggregated with (i) rights to purchase Common Stock accrued under any other purchase right granted under this Plan and (ii) similar rights accrued under other employee stock purchase plans (within the meaning of Code Section 423) of the Corporation or any Corporate Affiliate, would otherwise permit such Participant to purchase more than Twenty-Five Thousand Dollars ($25,000) worth of stock of the Corporation or any Corporate Affiliate (determined on the basis of the Fair Market Value per share on the date or dates such rights are granted) for each calendar year such rights are at any time outstanding. B. For purposes of applying such accrual limitations to the purchase rights granted under the Plan, the following provisions shall be in effect: (i) The right to acquire Common Stock under each outstanding purchase right shall accrue in a series of installments on each successive Purchase Date during the offering period in which such right remains outstanding. (ii) No right to acquire Common Stock under any outstanding purchase right shall accrue to the extent the Participant has already accrued in the same calendar year the right to acquire Common Stock under one (1) or more other purchase rights at a rate equal to Twenty-Five Thousand Dollars ($25,000) worth of Common Stock (determined on the basis of the Fair Market Value per share on the date or dates of grant) for each calendar year such rights were at any time outstanding. 7

C. If by reason of such accrual limitations, any purchase right of a Participant does not accrue for a particular Purchase Interval, then the payroll deductions which the Participant made during that Purchase Interval with respect to such purchase right shall be promptly refunded. D. In the event there is any conflict between the provisions of this Article and one or more provisions of the Plan or any instrument issued thereunder, the provisions of this Article shall be controlling. IX. EFFECTIVE DATE AND TERM OF THE PLAN A. The Plan was adopted by the Board on September 26, 1995 and was subsequently approved by the shareholders and became effective at the Effective Time. The Plan was amended by the Board on August 11, 1998 (the "1998 Amendment") to increase the maximum number of shares of Common Stock authorized for issuance under the Plan by an additional One Million Six Hundred Thousand (1,600,000) shares. The 1998 Amendment was approved by the shareholders at the 1998 Annual Meeting. On August 17, 1999, the Board amended the Plan to (i) increase the maximum number of shares of Common Stock authorized for issuance under the Plan by an additional One Million (1,000,000) shares and (ii) make amendments to certain administrative provisions of the Plan (the "1999 Amendment"). The 1999 Amendment was approved by the shareholders on October 26, 1999. B. This 2001 Restatement was adopted by the Board on August 9, 2001 and effects the following changes to the Plan: (i) increase the number of shares authorized for issuance under the Plan by an additional three million (3,000,000) shares, (ii) implement a series of overlapping twenty-four (24)-month offering periods beginning at semi-annual intervals each year, (iii) establish a series of semi-annual purchase dates within each such offering period, (iv) reduce the maximum number of shares of Common Stock purchasable per Participant on any one Purchase Date after November 30, 2001 from twelve thousand (12,000) shares to one thousand five hundred (1,500) shares, (v) limit the number of shares of Common Stock purchasable in total by all Participants on any one Purchase Date after November 30, 2001 to one million (1,000,000) shares, (vi) extend the maximum term of the Plan until the last business day in May 2011 and (vii) revise certain provisions of the Plan document in order to facilitate the administration of the Plan. No purchase rights were exercised under the Plan, and no shares of Common Stock were issued, on the basis of the 3,000,000-share increase authorized by the 2001 Restatement, until the 2001 Restatement was approved by the shareholders at the 2001 Annual Stockholders Meeting. C. The Corporation shall comply with all applicable requirements of the 1933 Act (including the registration of such additional shares of Common Stock issuable under the Plan on a Form S-8 registration statement filed with the Securities and Exchange Commission), all applicable listing requirements of the Nasdaq National Market with respect to those shares, and all other applicable requirements established by law or regulation. 8

D. Unless sooner terminated by the Board, the Plan shall terminate upon the earliest of (i) the last business day in May 2011, (ii) the date on which all shares available for issuance under the Plan shall have been sold pursuant to purchase rights exercised under the Plan or (iii) the date on which all purchase rights are exercised in connection with a Change in Control. No further purchase rights shall be granted or exercised, and no further payroll deductions shall be collected, under the Plan following such termination. X. AMENDMENT OF THE PLAN A. The Board may alter, amend, suspend or discontinue the Plan at any time to become effective immediately following the close of any Purchase Interval. However, the Plan may be amended or terminated immediately upon Board action, if and to the extent necessary to assure that the Corporation will not recognize, for financial reporting purposes, any compensation expense in connection with the shares of Common Stock offered for purchase under the Plan, should the financial accounting rules applicable to the Plan at the Effective Time be subsequently revised so as to require the recognition of compensation expense in the absence of such amendment or termination. B. In no event may the Board effect any of the following amendments or revisions to the Plan without the approval of the Corporation's shareholders: (i) increase the number of shares of Common Stock issuable under the Plan, except for permissible adjustments in the event of certain changes in the Corporation's capitalization, (ii) alter the purchase price formula so as to reduce the purchase price payable for the shares of Common Stock purchasable under the Plan or (iii) modify the requirements for eligibility to participate in the Plan. XI. GENERAL PROVISIONS A. All costs and expenses incurred in the administration of the Plan shall be paid by the Corporation; however, each Plan Participant shall bear all costs and expenses incurred by such individual in the sale or other disposition of any shares purchased under the Plan. B. Nothing in the Plan shall confer upon the Participant any right to continue in the employ of the Corporation or any Corporate Affiliate for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Corporation (or any Corporate Affiliate employing such person) or of the Participant, which rights are hereby expressly reserved by each, to terminate such person's employment at any time for any reason, with or without cause. C. The provisions of the Plan shall be governed by the laws of the State of California without resort to that State's conflict-of-laws rules. 9

SCHEDULE A CORPORATIONS PARTICIPATING IN EMPLOYEE STOCK PURCHASE PLAN AS OF AUGUST 9, 2001 Network Appliance, Inc.

APPENDIX The following definitions shall be in effect under the Plan: A. BASE SALARY shall mean the regular base salary paid to a Participant by one or more Participating Companies during such individual's period of participation in one or more offering periods under the Plan. Such Base Salary shall be calculated before deduction of (A) any income or employment tax withholdings or (B) any pre-tax contributions made by the Participant to any Code Section 401(k) salary deferral plan or any Code Section 125 cafeteria benefit program now or hereafter established by the Corporation or any Corporate Affiliate. The following items of compensation shall NOT be included in Base Salary: (i) all overtime payments, bonuses, commissions (other than those functioning as base salary equivalents), profit-sharing distributions and other incentive-type payments and (ii) any and all contributions (other than Code Section 401(k) or Code Section 125 contributions) made on the Participant's behalf by the Corporation or any Corporate Affiliate under any employee benefit or welfare plan now or hereafter established. B. BOARD shall mean the Corporation's Board of Directors. C. CASH EARNINGS shall mean the (i) base salary payable to a Participant by one or more Participating Companies during such individual's period of participation in one or more offering periods under the Plan plus (ii) all overtime payments, bonuses, commissions, current profit-sharing distributions and other incentive-type payments received during such period. Such Cash Earnings shall be calculated before deduction of (A) any income or employment tax withholdings or (B) any pre-tax contributions made by the Participant to any Code Section 401(k) salary deferral plan or any Code Section 125 cafeteria benefit program now or hereafter established by the Corporation or any Corporate Affiliate. However, Cash Earnings shall NOT include any contributions (other than Code Section 401(k) or Code Section 125 contributions deducted from such Cash Earnings) made by the Corporation or any Corporate Affiliate on the Participant's behalf to any employee benefit or welfare plan now or hereafter established. D. CHANGE IN CONTROL shall mean a change in ownership or control of the Corporation effected through any of the following transactions: (i) a merger or consolidation in which securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation's outstanding securities are transferred to a person or persons different from the persons holding those securities immediately prior to such transaction, (ii) the sale, transfer or other disposition of all or substantially all of the assets of the Corporation in complete liquidation or dissolution of the Corporation; or

(iii) the acquisition, directly or indirectly by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation), of beneficial ownership (within the meaning of Rule 13d-3 of the 1934 Act) of securities possessing more than fifty percent (50%) of the total combined voting power of the Corporation's outstanding securities pursuant to a tender or exchange offer made directly to the Corporation's shareholders. E. CODE shall mean the Internal Revenue Code of 1986, as amended. F. COMMON STOCK shall mean the Corporation's common stock. G. CORPORATE AFFILIATE shall mean any parent or subsidiary corporation of the Corporation (as determined in accordance with Code Section 424), whether now existing or subsequently established. H. CORPORATION shall mean Network Appliance, Inc., a California corporation, and any corporate successor to all or substantially all of the assets or voting stock of Network Appliance, Inc. which shall by appropriate action adopt the Plan. I. EFFECTIVE TIME shall mean the time at which the underwriting agreement for the Corporation's initial public offering of the Common Stock was executed and finally priced. Any Corporate Affiliate which becomes a Participating Corporation after such Effective Time shall designate a subsequent Effective Time with respect to its employee-Participants. J. ELIGIBLE EMPLOYEE shall mean any person who is employed by a Participating Company on a basis under which he or she is regularly expected to render more than twenty (20) hours of service per week for more than five (5) months per calendar year for earnings considered wages under Code Section 3401(a). K. FAIR MARKET VALUE per share of Common Stock on any relevant date shall be determined in accordance with the following provisions: (i) If the Common Stock is at the time traded on the Nasdaq National Market, then the Fair Market Value shall be the closing selling price per share of Common Stock on the date in question, as such price is reported by the National Association of Securities Dealers on the Nasdaq National Market or any successor system and published in The Wall Street Journal. If there is no closing selling price for the Common Stock on the date in question, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists. (ii) If the Common Stock is at the time listed on any Stock Exchange, then the Fair Market Value shall be the closing selling price per share of Common Stock on the date in question on the Stock Exchange determined by the Plan Administrator to be the primary market for the Common Stock, as such price is officially quoted in the composite tape of transactions on such exchange 2

and published in The Wall Street Journal. If there is no closing selling price for the Common Stock on the date in question, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists. L. 1933 ACT shall mean the Securities Act of 1933, as amended. M. PARTICIPANT shall mean any Eligible Employee of a Participating Corporation who is actively participating in the Plan. N. PARTICIPATING CORPORATION shall mean the Corporation and such Corporate Affiliate or Affiliates as may be authorized from time to time by the Board to extend the benefits of the Plan to their Eligible Employees. The Participating Corporations in the Plan as of August 9, 2001 are listed in attached Schedule A. O. PLAN shall mean the Corporation's Employee Stock Purchase Plan, as set forth in this document. P. PLAN ADMINISTRATOR shall mean the committee of two (2) or more Board members appointed by the Board to administer the Plan. Q. PURCHASE DATE shall mean the last business day of each Purchase Interval. R. PURCHASE INTERVAL shall mean each successive six (6)-month period within the offering period at the end of which there shall be purchased shares of Common Stock on behalf of each Participant. S. STOCK EXCHANGE shall mean either the American Stock Exchange or the New York Stock Exchange. 3