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

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1. Name and Address of Reporting Person * Slocum Peter   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, Engineering (Last) (First) (Middle) C/O 3PAR INC., 4209 TECHNOLOGY DR. 3. Date of Earliest Transaction (Month/Day/Year) 08/09/2008 (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 Common Stock 07/30/2010 07/30/2010 C   5,000 A $ 0 5,000 D   Common Stock 07/30/2010 07/30/2010 F   1,834 D $ 10.1 3,166 D

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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

Restricted Stock Unit

$ 0.001 (1)

08/06/2009

08/06/2009

A

20,000

(2)

(2)

Common Stock

20,000

$ 0

20,000

D

Restricted Stock Unit

$ 0.001 (1)

07/30/2010

07/30/2010

C

5,000

(3)

(3)

Common Stock

5,000

$ 0

15,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Slocum Peter C/O 3PAR INC. 4209 TECHNOLOGY DR. FREMONT, CA 94538			VP, Engineering

Signatures

Ricardo E. Velez, Atty-in-Fact for Peter Slocum		09/09/2010
**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)	Represents par value of PAR common stock
(2)	25% of the restricted stock unit will vest on July 30,2010 and shares will be delivered to reporting person on that date. The restricted stock unit will continue to vest as to 25% of the restricted stock unit annually, and shares will be distributed to reporting person on each vest date.
(3)	25% of the restricted stock unit became vested on July 30, 2010 and shares were delivered to reporting person on that date. The restricted stock unit will continue vest annually and shares will be delivered to reporting person on each vest date.

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