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10-Q - FORM 10-Q - IRON MOUNTAIN INCa2198510z10-q.htm
EX-12 - EXHIBIT 12 - IRON MOUNTAIN INCa2198510zex-12.htm
EX-31.1 - EXHIBIT 31.1 - IRON MOUNTAIN INCa2198510zex-31_1.htm
EX-31.2 - EXHIBIT 31.2 - IRON MOUNTAIN INCa2198510zex-31_2.htm
EX-18.1 - EXHIBIT 18.1 - IRON MOUNTAIN INCa2198510zex-18_1.htm
EX-32.2 - EXHIBIT 32.2 - IRON MOUNTAIN INCa2198510zex-32_2.htm
EXCEL - IDEA: XBRL DOCUMENT - IRON MOUNTAIN INCFinancial_Report.xls

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EXHIBIT 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

        In connection with the filing of the Quarterly Report on Form 10-Q for the quarter ended March 31, 2010 (the "Report") by Iron Mountain Incorporated (the "Company"), the undersigned, as the Chief Executive Officer of the Company, hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

        1.     the Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

        2.     the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 10, 2010

    /s/ ROBERT T. BRENNAN

Robert T. Brennan
Chief Executive Officer



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