FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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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(Print or Type Responses)

1. Name and Address of Reporting Person *   Luby William K 2. Date of Event Requiring Statement (Month/Day/Year) 04/30/2010 3. Issuer Name and Ticker or Trading Symbol EQUINIX INC [EQIX] (Last) (First) (Middle) 301 VELOCITY WAY 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) FOSTER CITY, CA 94404 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 5,717 D   Common Stock 1,056,161 I (1) See footnote

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Luby William K 301 VELOCITY WAY FOSTER CITY, CA 94404	  X	Â	Â	Â

Signatures

Darrin B. Short, Attorney in Fact		05/04/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Includes shares owned of record by Seaport Capital Partners II, L.P. ("Seaport Partners"), shares owned of record by Seaport Investments, LLC ("Seaport Investments"), shares owned of record by CEA Capital Partners USA, LP ("CEA") and shares owned of record by CEA Capital Partners USA CI, LP ("CEA CI"). The general partner of Seaport Partners is CEA Investment Partners II, LLC. CEA Investment Partners II, LLC is controlled by Seaport Associates, LLC, which is controlled by William Luby and James Collis. Seaport Investments is controlled by Mr. Luby and Mr. Collis. CEA and CEA CI are each controlled by CEA Investment Partners, L.P. which is controlled by CEA Capital Corp. CEA Capital Corp. is controlled by J. Patrick Michaels, Jr. The reporting person disclaims beneficial ownership of these shares extent to the extent of his pecuniary interest therein.

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