EXHIBIT 10.1

FIRST AMENDMENT

FIRST AMENDMENT, dated as of November 9, 2004 (the “Amendment”), to the Seventh Amended and Restated Credit Agreement, dated as of July 8, 2004 (as amended, supplemented or otherwise modified from time to time, the “Credit Agreement”), among IRON MOUNTAIN INCORPORATED, a Pennsylvania corporation (the “Company”), IRON MOUNTAIN CANADA CORPORATION, a company organized under the laws of the Province of Nova Scotia, the several banks and other financial institutions or entities from time to time parties to the Credit Agreement (the “Lenders”), BANK OF AMERICA, N.A. (formerly known as Fleet National Bank), as syndication agent, WACHOVIA BANK, NATIONAL ASSOCIATION and THE BANK OF NOVA SCOTIA, as co-documentation agents, JPMORGAN CHASE BANK, TORONTO BRANCH, as Canadian Administrative Agent, JPMORGAN CHASE BANK, as administrative agent for the Lenders (in such capacity, the “Administrative Agent”) and J.P. MORGAN SECURITIES INC., as arranger and bookrunner.

W I T N E S S E T H:

WHEREAS, the Company, the Lenders and the Administrative Agent are parties to the Credit Agreement;

WHEREAS, the Company has requested certain amendments to the Credit Agreement; and

WHEREAS, the Lenders are willing to agree to such amendments, subject to the terms and conditions set forth herein;

NOW, THEREFORE, in consideration of the premises and mutual covenants contained herein, the Company, the Lenders and the Administrative Agent hereby agree as follows:

1. Defined Terms. Unless otherwise defined herein, all capitalized terms used herein shall have the meanings given to them in the Credit Agreement.

2. Amendment to Section 9.09. Section 9.09 of the Credit Agreement is hereby amended by deleting the table appearing therein in its entirety and substituting in lieu thereof the following new table:

Period	Consolidated Leverage Ratio
From June 30, 2004 through December 31, 2005	5.25 to 1
From January 1, 2006 through June 30, 2006	5.00 to 1
From July 1, 2006 through December 31, 2006	4.75 to 1
From January 1, 2007 through December 31, 2007	4.50 to 1
From January 1, 2008 and thereafter	4.25 to 1

3. Amendment to Section 9.10. Section 9.10 of the Credit Agreement is hereby amended by deleting the table appearing therein in its entirety and substituting in lieu thereof the following new table:

Period	Domestic Leverage Ratio
From June 30, 2004 through December 31, 2005	5.50 to 1
From January 1, 2006 through June 30, 2006	5.25 to 1
From July 1, 2006 through December 31, 2006	5.00 to 1
From January 1, 2007 through December 31, 2007	4.75 to 1
From January 1, 2008 and thereafter	4.50 to 1

4. Representations and Warranties. On and as of the date hereof, the Company hereby confirms, reaffirms and restates the representations and warranties set forth in Section 8 of the Credit Agreement mutatis mutandis, except to the extent that such representations and warranties expressly relate to a specific earlier date in which case the Company hereby confirms, reaffirms and restates such representations and warranties as of such earlier date. The Company represents and warrants that, after giving effect to this Amendment, no Default or Event of Default has occurred and is continuing.

5. Effectiveness. This Amendment shall become effective as of the date set forth above (the “Effective Date”) upon the satisfaction of the following conditions precedent:

(a) First Amendment. The Administrative Agent shall have received this Amendment executed and delivered by the Administrative Agent, the Company, and Lenders party to the Credit Agreement constituting the “Majority Lenders” thereunder (or, in the case of any Lender, a lender addendum or joinder agreement in a form specified by the Administrative Agent).

(b) Security Documents. The Administrative Agent shall have received the Acknowledgment and Confirmation, substantially in the form of Exhibit A hereto, executed and delivered by an authorized officer of the Company, the Canadian Borrower and each Subsidiary Guarantor.

6. Valid and Binding. This Amendment shall be binding upon and inure to the benefit of each of the parties hereto and their respective successors and assigns.

7. Payment of Expenses. The Company agrees to pay or reimburse the Administrative Agent for all out-of-pocket costs and expenses incurred in connection with the Amendment, any other documents prepared in connection herewith and the transactions contemplated hereby, including, without limitation, the reasonable fees and disbursements of counsel.

8. Reference to and Effect on the Credit Agreement; Limited Effect. On and after the Effective Date, each reference in the Credit Agreement to “this Agreement”, “hereunder”, “hereof” or words of like import referring to the Credit Agreement shall mean and be a reference to the Credit Agreement as amended hereby. This Amendment shall not constitute an amendment of any other provision of the Credit Agreement not expressly referred to herein and shall not be construed as a waiver or consent to any further or future action on the part of the Company that would require a waiver or consent of the Lenders or the Administrative Agent. Except as expressly amended hereby, the provisions of the Credit Agreement are and shall remain in full force and effect.

9. Severability. Any provision of this Amendment which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

10. Loan Document; Integration. This Amendment shall constitute a Basic Document. This Amendment and the other Basic Documents represent the agreement of the Company, the Canadian Borrower, each Subsidiary Guarantor, the Administrative Agent and the Lenders with respect to the subject matter hereof, and there are no promises, undertakings, representations or warranties by the Administrative Agent or any Lender relative to the subject matter hereof not expressly set forth or referred to herein or in the other Basic Documents.

11. GOVERNING LAW. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

12. Counterparts. This Amendment may be executed by one or more of the parties hereto in any number of separate counterparts (which may include counterparts delivered by facsimile transmission), each of which shall be deemed to be an original, and all of which taken together shall be deemed to constitute one and the same instrument.

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and delivered by their proper and duly authorized officers as of the day and year first above written.

	IRON MOUNTAIN INCORPORATED


	By: /s/ J.P. Lawrence Name: J.P. Lawrence Title: VP, Treasurer

	JPMORGAN CHASE BANK, as Administrative Agent and as a Lender


	By: /s/ Robert T. Sacks Name: Robert T. Sacks Title: Managing Director

JPMORGAN CHASE BANK, TORONTO BRANCH, as Canadian Administrative Agent and as a Canadian Lender

By: /s/ Christine Chan

Name: Christine Chan
Title: Vice President

BANK ONE, NA, as a Lender

By: /s/ Robert T. Sacks

Name: Robert T. Sacks

Title: Managing Director

Signature page to the First Amendment

dated as of November 9, 2004 to the

IRON MOUNTAIN INCORPORATED