Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Short Alastair A
  2. Issuer Name and Ticker or Trading Symbol
3PAR Inc. [PAR]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, General Counsel
(Last)
(First)
(Middle)
C/O 3PAR INC., 4209 TECHNOLOGY DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
09/27/2010
(Street)

FREMONT, CA 94538
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Right to Buy (Common Stock) $ 9.89 09/27/2010 09/27/2010 D     35,000 05/12/2011 05/12/2020 Common Stock 35,000 (1) 0 D  
Right to Buy (Common Stock) $ 9.36 09/27/2010 09/27/2010 D     50,000 06/01/2010 06/01/2019 Common Stock 50,000 (1) 0 D  
Right to Buy (Common Stock) $ 8.96 09/27/2010 09/27/2010 D     50,000 08/05/2009 08/05/2018 Common Stock 50,000 (1) 0 D  
Right to Buy (Common Stock) $ 0.86 09/27/2010 09/27/2010 D     25,000 02/03/2007 02/03/2016 Common Stock 25,000 (1) 0 D  
Right to Buy (Common Stock) $ 0.58 09/27/2010 09/27/2010 D     100,000 11/17/2006 11/17/2015 Common Stock 100,000 (1) 0 D  
Right to Buy (Common Stock) $ 0.46 09/27/2010 09/27/2010 D     17,491 04/01/2006 04/01/2015 Common Stock 17,491 (1) 0 D  
Restricted Stock Unit $ 0.001 (2) 09/27/2010 09/27/2010 D     20,000 05/12/2011 05/12/2014 Common Stock 20,000 (3) 0 D  
Restricted Stock Unit $ 0.001 (2) 09/27/2010 09/27/2010 D     18,750 06/01/2010 06/01/2013 Common Stock 18,750 (4) 0 D  
Restricted Stock Unit $ 0.001 (2) 09/27/2010 09/27/2010 D     20,000 07/21/2012 07/21/2012 Common Stock 20,000 (5) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Short Alastair A
C/O 3PAR INC.
4209 TECHNOLOGY DRIVE
FREMONT, CA 94538
      VP, General Counsel  

Signatures

 /s/ Ricardo E. Velez, Atty-in-Fact for Alastair A. Short   09/30/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) In connection with the completion of a cash tender offer launched by Rio Acquisition Corporation, a subsidiary of Hewlett-Packard Company ("HP"), to purchase all of Issuer's issued and outstanding common stock, this option was not assumed by HP and was cancelled in exchange for a cash payment to Reporting Person equal to the difference between the offer price per share of $33.00 and the exercise price per share of the option.
(2) Represents par value of Issuer's common stock.
(3) Pursuant to the terms of a merger agreement between the issuer, HP and Rio Acquisition Corporation (the "Merger"), this restricted stock unit was assumed and exchanged for a restricted stock unit covering 16,638 shares of HP common stock.
(4) Pursuant to the terms of the Merger, this restricted stock unit was exchanged for a restricted stock unit covering 15,598 shares of HP common stock.
(5) Pursuant to the terms of the Merger, this restricted stock unit was exchanged for a restricted stock unit covering 16,638 shares of HP common stock.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.