IRON MOUNTAIN INCORPORATED

STATEMENT OF THE CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Dollars in thousands)

	Year Ended December 31,										Nine Months Ended September 30,

	2007		2008		2009		2010		2011		2011		2012
Earnings:
Income from Continuing Operations before Provision for Income Taxes	$	243,161	$	240,766	$	345,279	$	334,222	$	352,900	$	264,173	$	261,577
Add: Fixed Charges		292,435		309,991		292,860		284,052		286,241		208,651		239,388

	$	535,596	$	550,757	$	638,139	$	618,274	$	639,141	$	472,824	$	500,965

Fixed Charges:
Interest Expense, Net	$	214,147	$	219,989	$	212,545	$	204,559	$	205,256	$	147,269	$	178,381
Interest Portion of Rent Expense		78,288		90,002		80,315		79,493		80,985		61,382		61,007

	$	292,435	$	309,991	$	292,860	$	284,052	$	286,241	$	208,651	$	239,388

Ratio of Earnings to Fixed Charges		1.8x		1.8x		2.2x		2.2x		2.2x		2.3x		2.1x