RECITALS:

Exhibit 10.1

AGREEMENT OF RESIGNATION, APPOINTMENT AND ACCEPTANCE, dated as of January 28, 2005 by and among Iron Mountain Incorporated, a corporation duly organized and existing under the laws of the State of Delaware and having its principal office at 745 Atlantic Avenue, Boston, Massachusetts 02111 (the “Issuer”), The Bank of New York, (the “Prior Trustee”), and The Bank of New York Trust Company, N.A., (the “Successor Trustee”).

RECITALS:

WHEREAS, the Issuer and Prior Trustee entered into a Trust Indenture dated as of April 26, 1999 by and between the Issuer and the Prior Trustee (the “Indenture”);

WHEREAS, the 8.25% Senior Subordinated Notes due July 1, 2011 (the “Notes”) were originally authorized and issued under the Indenture;

WHEREAS, the Issuer desires to appoint Successor Trustee as Trustee, Paying Agent and Registrar to succeed Prior Trustee in such capacities under the Indenture; and

WHEREAS, Successor Trustee is willing to accept such appointment as Successor Trustee, Paying Agent and Registrar under the Indenture;

NOW, THEREFORE, the Issuer, Prior Trustee and Successor Trustee, for and in consideration of the premises of other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, hereby consent and agree as follows:

ARTICLE I

THE PRIOR TRUSTEE

SECTION 1.01 Prior Trustee hereby resigns as Trustee under the Indenture.

SECTION 1.02 Prior Trustee hereby assigns, transfers, delivers and confirms to Successor Trustee all right, title and interest of Prior Trustee in and to the trusts of the Trustee under the Indenture and all the rights, powers and trusts of the Trustee under the Indenture; provided, however Prior Trustee shall continue to be entitled to the expense reimbursement and indemnity provisions thereunder with respect to the period prior to the effective date hereof. Prior Trustee shall at the expense of the Successor Trustee execute and deliver such further instruments and shall do such other things as Successor Trustee may reasonably require so as to more fully and certainly vest and confirm in Successor Trustee all the rights, powers and trust hereby assigned, transferred, delivered and confirmed to Successor Trustee as Trustee, Paying Agent and Registrar.

ARTICLE II

THE ISSUER

SECTION 2.01 The Issuer hereby accepts the resignation of Prior Trustee as Trustee, Paying Agent and Registrar under the Indenture.