IRON MOUNTAIN INCORPORATED

STATEMENT OF THE CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Dollars in thousands)

	Year Ended December 31,

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

	$	535,596		$	550,757		$	638,139		$	618,274		$	639,141

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

	$	292,435		$	309,991		$	292,860		$	284,052		$	286,241

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