Income Per Unit (Tables)

3 Months Ended

Mar. 31, 2013

Summary Of Basic And Diluted Earnings Per Share

	Three Months Ended March 31,
	2013	2012
Net income available to common stockholders	$            42,657	$            39,211
Weighted average shares outstanding—basic	126,445,285	107,099,856
Potentially dilutive common shares:
Stock options	70,877	205,830
Class C Units (2007 Grant)	-	16,358
Unvested incentive units	222,177	262,812
Weighted average shares outstanding—diluted	126,738,339	107,584,856
Income per share:
Basic	$                0.34	$                0.37
Diluted	$                0.34	$                0.36

Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share

	Three Months Ended March 31,
	2013	2012
Weighted average of Operating Partnership common    units not owned by Digital Realty Trust, Inc.	2,442,756	4,332,966
Potentially dilutive 2029 Debentures	6,590,470	6,442,085
Potentially dilutive Series C Cumulative Convertible    Preferred Stock	-	2,784,845
Potentially dilutive Series D Cumulative Convertible    Preferred Stock	1,909,146	4,337,429
Potentially dilutive Series E Cumulative Redeemable    Preferred Stock	4,381,703	4,025,863
Potentially dilutive Series F Cumulative Redeemable    Preferred Stock	2,778,866	-
	18,102,941	21,923,188

Digital Realty Trust, L.P. [Member]

Summary Of Basic And Diluted Earnings Per Share

	Three Months Ended March 31,
	2013	2012
Net income available to common unitholders	$            43,481	$            40,797
Weighted average units outstanding--basic	128,888,041	111,432,822
Potentially dilutive common units:
Stock options	70,877	205,830
Class C Units (2007 Grant)	-	16,358
Unvested incentive units	222,177	262,812
Weighted average units outstanding--diluted	129,181,095	111,917,822
Income per unit:
Basic	$                0.34	$                0.37
Diluted	$                0.34	$                0.36

Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share

	Three Months Ended March 31,
	2013	2012
Potentially dilutive 2029 Debentures	6,590,470	6,442,085
Potentially dilutive Series C Cumulative Convertible    Preferred Units	-	2,784,845
Potentially dilutive Series D Cumulative Convertible    Preferred Units	1,909,146	4,337,429
Potentially dilutive Series E Cumulative Redeemable     Preferred Units	4,381,703	4,025,863
Potentially dilutive Series F Cumulative Redeemable    Preferred Units	2,778,866	-
	15,660,185	17,590,222