Exhibit 99.1

		560 Mission Street, Suite 2900 San Francisco, CA 94105 USA Tel: +1 415 738 6500 Fax: +1 415 738 6501 www.digitalrealty.com

For Additional Information:

DIGITAL REALTY TRUST, INC. REPORTS THIRD QUARTER 2011 FFO OF $1.01 PER

DILUTED SHARE AND UNIT

Solid performance yields 24.7% year-over-year growth in FFO per diluted share and unit

San Francisco, Calif. (October 27, 2011) – Digital Realty Trust, Inc. (NYSE: DLR), a leading global provider of data center solutions, today announced financial results for the third quarter of 2011.

Highlights:

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Funds from operations (“FFO”) on a diluted basis was $121.3 million in the third quarter of 2011, or $1.01 per diluted share and unit, compared to $1.02 per diluted share and unit in the second quarter of 2011, and up 24.7% from $0.81 per diluted share and unit in the third quarter of 2010.

“Core FFO is FFO adjusted for certain items that we believe do not represent ongoing expenses or revenue streams of our core business. Third quarter 2011 core FFO was $1.02 per diluted share and unit, unchanged from the second quarter of 2011, and up 13.3% from third quarter 2010 core FFO of approximately $0.90 per diluted share and unit,” said A. William Stein, Chief Financial Officer and Chief Investment Officer of Digital Realty. “The decrease in reported FFO on a diluted share and unit basis in the third quarter, compared to the second quarter, was primarily due to transaction expenses and additional shares issued through our ATM equity distribution program. These two items were partially offset by foreign exchange transaction gains related to exchange rate movement on Euro and British Pound Sterling draws on our Corporate Revolving Credit Facility.”

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FFO is a supplemental non-GAAP performance measure used by the real estate industry to measure the operating performance of real estate investment trusts. FFO and core FFO should not be considered as substitutes for net income determined in accordance with U.S. GAAP as measures of financial performance. A reconciliation from U.S. GAAP net income available to common stockholders to FFO, a definition of FFO, a reconciliation from FFO to core FFO, and a definition of core FFO is included as an attachment to this press release.

Net income for the third quarter of 2011 was $37.7 million, down 1.3% from $38.2 million in the second quarter of 2011 and up 59.7% from $23.6 million in the third quarter of 2010. Net income available to common stockholders in the third quarter of 2011 was $31.9 million, or $0.31 per diluted share, compared to $32.0 million, or $0.33 per diluted share, in the second quarter of 2011, and up from $9.6 million, or $0.11 per diluted share, in the third quarter of 2010.

The Company reported total operating revenues of $273.5 million in the third quarter of 2011, up 2.1% from $267.9 million in the second quarter of 2011 and up 15.2% from $237.5 million in the third quarter of 2010.

“Despite the volatile capital market conditions, Digital Realty delivered another strong performance in the third quarter. Consistent with our approach to managing our business during the 2008 downturn, we have remained focused on providing customers with a variety of data center solutions to support their IT infrastructure needs. When combined with our strong balance sheet, financial resources, and attractively priced capital, we are able to support our customers’ growth over the long term, while generating attractive risk-adjusted returns for our shareholders,” said Michael F. Foust, Chief Executive Officer of Digital Realty. “We believe our global operating platform, suite of flexible data center solutions and investment and development expertise will continue to make Digital Realty the best choice for enterprise customers looking for a reliable and financially secure data center partner.”

Acquisitions and Leasing Activity

On July 21, 2011, the Company entered the Australian market with the acquisition of an 8.6 acre development site in Sydney, Australia for a purchase price of approximately AU $10.1 million. This property is capable of supporting approximately 200,000 square feet of data center development with over 11.5 MW of IT capacity.

On July 26, 2011, the Company completed the acquisition of a 130,000 square foot building for redevelopment in London, U.K. for a purchase price of £12.9 million. The building is capable of supporting five 1,440 kW Turn-Key Datacenter^® PODs with total IT capacity of 8 MW.

On August 19, 2011, the Company completed its second transaction in Australia with the acquisition of a 7.5 acre development site in Melbourne, Australia for a purchase price of approximately AU $4.1 million. The multi-phase project is capable of supporting the development of six 1,440 kW Turn-Key Datacenter^® PODs. The timing and commencement of development is subject to finalizing development approvals for the site.

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On August 26, 2011, the Company signed a long-term Build-to-Suit agreement in Hillsboro, Oregon. In conjunction with the Build-to-Suit agreement, Digital Realty acquired a 5.1 acre development site with utility power and telecommunications services already in place. The new 58,000 square foot facility to be constructed will include 18,250 square feet of technical space with 4.5 MW of IT capacity. Construction of the facility will occur in multiple phases, with the first phase scheduled for completion in August 2012.

On September 23, 2011, the Company acquired a 69,000 square foot data center facility located in Sacramento, California for a purchase price of $30.0 million. The site, which delivers 2,740 kW of critical load, is 100% leased on a long term, triple net basis to a leading business continuity and network services provider.

Subsequent to quarter end, on October 19, 2011, the Company entered into a 50/50 joint venture partnership with Clise Properties, Inc. to redevelop a parking garage to include four floors of data center space in Seattle, Washington. The site will support 4,100 kW of IT capacity.

The Company signed leases during the quarter ended September 30, 2011 totaling approximately $21.9 million of annualized GAAP rental revenue, including $1.1 million of colocation revenue. Leases signed totaled over 186,000 square feet, consisting of approximately 54,000 square feet of Turn-Key Datacenter^® space leased at an average annual GAAP rental rate of approximately $164.00 per square foot, 96,000 square feet of Build-to-Suit space leased at an average annual GAAP rental rate of approximately $112.00 per square foot, and approximately 37,000 square feet of non-technical space leased at an average annual GAAP rental rate of approximately $33.00 per square foot.

For the quarter ended September 30, 2011, the Company commenced leases totaling approximately $25.4 million of annualized GAAP rental revenue, including approximately $1.0 million of colocation revenue. Commenced leases totaled approximately 249,000 square feet, consisting of over 101,000 square feet of Turn-Key Datacenter space leased at an average annual GAAP rental rate of approximately $161.00 per square foot, 56,000 square feet of Built-to-Suit space leased at an average annual GAAP rental rate of approximately $100.00 per square foot, approximately 47,000 square feet of Powered Base Building space leased at an average annual GAAP rental rate of approximately $24.00 per square foot, and over 44,000 square feet of non-technical space leased at an average annual GAAP rental rate of approximately $31.00 per square foot.

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As of October 27, 2011, the Company’s portfolio comprised 98 properties, excluding three properties held in unconsolidated joint ventures, consisting of 136 buildings totaling approximately 17.4 million net rentable square feet, including 2.1 million square feet of space held for redevelopment. The portfolio is strategically located in 31 key technology markets throughout North America, Europe, Singapore and Australia.

Balance Sheet Update

Total assets grew to approximately $5.8 billion at September 30, 2011, up from approximately $5.7 billion at June 30, 2011. Total debt at September 30, 2011 was approximately $2.8 billion, down from $3.1 billion at June 30, 2011. Stockholders’ equity was approximately $2.5 billion at September 30, 2011, up from approximately $2.1 billion at June 30, 2011.

In August 2011, the Company exchanged the remaining $48.3 million aggregate principal amount of its 4.125% Exchangeable Senior Debentures due 2026 for a combination of shares of its common stock and cash.

For the three months ended September 30, 2011, under its ATM equity distribution program, the Company issued approximately 4.1 million shares of common stock for net proceeds totaling approximately $237.6 million at an average price of $58.38 per share. The proceeds have been used to repay borrowings under the Company’s revolving credit facility, to acquire additional properties, to fund development and redevelopment opportunities and for general corporate purposes.

On September 15, 2011, the Company completed an offering of its 7.000% Series E Cumulative Redeemable Preferred Stock selling 11.5 million shares, including shares sold pursuant to the underwriters’ exercise in full of their over-allotment option, and raised net proceeds of $277.4 million.

During the third quarter, holders of the Company’s Series C Convertible Preferred Stock converted approximately 145,000 shares of the Series C Convertible Preferred Stock with a liquidation preference value of $3.6 million into 77,000 newly issued shares of common stock at the request of holders pursuant to the terms of such preferred stock. This comprised approximately 2% of the Series C Convertible Preferred Stock outstanding at December 31, 2010. Holders of the Company’s Series D Convertible Preferred Stock converted approximately 691,000 shares of the Series D Convertible Preferred Stock with a liquidation preference value of $17.3 million into approximately 423,000 newly issued shares of common stock at the request of holders pursuant to the terms of such preferred stock. This comprised approximately 5% of the Series D Convertible Preferred Stock outstanding at December 31, 2010.

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“We continued our strategy of accessing attractively priced capital with the issuance of the 7.000% Series E Cumulative Redeemable Preferred Stock and through sales under our ATM equity distribution program,” said Mr. Stein. “At the same time, we expect to close the syndication of a $1.5 billion multi-currency, unsecured revolving credit facility in early November. These efforts will further strengthen our balance sheet, increase our liquidity and provide sufficient capital to fund the growth of the Company.”

The Company plans to provide its initial 2012 guidance in January 2012.

2011 Revised Outlook

FFO per diluted share and unit for the year ending December 31, 2011 is projected to range between $4.02 and $4.05. This guidance represents expected FFO growth of 18.6% to 19.5% over 2010 FFO of $3.39 per diluted share and unit. After adjusting for certain items that do not represent core revenue and expense streams for the full years 2011 and 2010, core FFO per diluted share and unit for the year ending December 31, 2011 is projected to be between $4.07 and $4.09, which represents expected core FFO growth of 16.6% to 17.2% over the 2010 core FFO of $3.49 per diluted share and unit adjusted for $0.10 of non-core revenue and expense items. A reconciliation of the range of 2011 projected net income to projected FFO as reported and core FFO is as follows:

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Fiscal year 2011 guidance provided by Digital Realty in this press release is based on the following updated assumptions:

Investor Conference Call Details

Digital Realty will host a conference call on Thursday, October 27, 2011 at 10:00 am PT / 1:00 pm ET to discuss its third quarter 2011 financial results and operating performance. The conference call will feature Chief Executive Officer, Michael Foust, and Chief Financial Officer and Chief Investment Officer, A. William Stein. To participate in the live call, investors are invited to dial +1 (888) 701-6680 (for domestic callers) or +1 (706) 634-5458 (for international callers) and quote the conference ID #94758611 at least five minutes prior to start time. A live webcast of the call will be available via the Investors section of Digital Realty’s website at www.digitalrealty.com. Please go to the website at least 15 minutes early to register and download and install any necessary audio software. If you are unable to listen to the live conference call, a telephone and webcast replay will be available until 11:59 pm ET on Thursday, November 10, 2011. The telephone replay can be accessed two hours after the call by dialing +1 (855) 859-2056 (for domestic callers) or +1 (404) 537-3406 (for international callers) and using the conference ID #94758611. The webcast replay can be accessed on Digital Realty’s website immediately after the live call has concluded.

About Digital Realty

Digital Realty Trust, Inc. focuses on delivering customer driven data center solutions by providing secure, reliable and cost effective facilities that meet each customer’s unique data center needs. Digital Realty’s customers include domestic and international companies across multiple industry verticals ranging from information technology and Internet enterprises, to manufacturing and financial services. Digital Realty’s 98 properties, excluding three properties held as investments in unconsolidated joint ventures, comprise approximately 17.4 million square feet as of October 27, 2011, including 2.1 million square feet of space held for redevelopment. Digital Realty’s portfolio is located in 31 markets throughout Europe, North America, Singapore and Australia. Additional information about Digital Realty is included in the Company Overview, which is available on the Investors page of Digital Realty’s website at http://www.digitalrealty.com.

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Safe Harbor Statement

This press release contains forward-looking statements which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially, including statements related to the Company’s 2011 guidance and its underlying assumptions, supply and demand for data center space, rent from leases that have been signed but have not yet commenced and other contracted rent to be received in future periods, development and redevelopment plans, expected timing, size and IT capacity of development and redevelopment projects, and the syndication of the expanded $1.5 billion multi-currency revolving credit facility. These risks and uncertainties include, among others, the following: the impact of the recent deterioration in global economic, credit and market conditions, including the downgrading of the U.S. government’s credit rating; current local economic conditions in our geographic markets; decreases in information technology spending, including as a result of economic slowdowns or recession; adverse economic or real estate developments in our industry or the industry sectors that we sell to (including risks relating to decreasing real estate valuations and impairment charges); our dependence upon significant tenants; bankruptcy or insolvency of a major tenant or a significant number of smaller tenants; defaults on or non-renewal of leases by tenants; our failure to obtain necessary debt and equity financing; increased interest rates and operating costs; risks associated with using debt to fund our business activities, including re-financing and interest rate risks, our failure to repay debt when due, adverse changes in our credit ratings or our breach of covenants or other terms contained in our loan facilities and agreements; financial market fluctuations; changes in foreign currency exchange rates; our inability to manage our growth effectively; difficulty acquiring or operating properties in foreign jurisdictions; our failure to successfully integrate and operate acquired or redeveloped properties; risks related to joint venture investments, including as a result of our lack of control of such investments; delays or unexpected costs in development or redevelopment of properties; decreased rental rates or increased vacancy rates; increased competition or available supply of data center space; our inability to successfully develop and lease new properties and space held for redevelopment; difficulties in identifying properties to acquire and completing acquisitions; our inability to acquire off-market properties; our inability to comply with the rules and regulations applicable to reporting companies; our failure to maintain our status as a REIT; possible adverse changes to tax laws; restrictions on our ability to engage in certain business activities; environmental uncertainties and risks related to natural disasters; losses in excess of our insurance coverage; changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; and changes in local, state and federal regulatory requirements, including changes in real estate and zoning laws and increases in real property tax rates. Additional risks and uncertainties related to the syndication of an expanded $1.5 billion multicurrency credit facility include

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receipt of lender commitments, risks that the terms of any lender commitments may be less favorable than we anticipate, satisfaction of closing conditions and negotiation and execution of final documentation. For a further list and description of such risks and uncertainties, see the reports and other filings by the Company with the U.S. Securities and Exchange Commission, including the Company’s Annual Report on Form 10-K for the year ended December 31, 2010 and Quarterly Reports on Form 10-Q for the quarters ended March 31, 2011 and June 30, 2011. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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Digital Realty Trust, Inc. and Subsidiaries

Condensed Consolidated Income Statements

(in thousands, except share and per share data)

(unaudited)

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Digital Realty Trust, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(in thousands)

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Digital Realty Trust, Inc. and Subsidiaries

Reconciliation of Net Income Available to Common Stockholders to Funds From Operations (FFO)

(in thousands, except per share and unit data)

(unaudited)

Digital Realty Trust, Inc. and Subsidiaries

Reconciliation of Funds From Operations (FFO) to Core Funds From Operations (CFFO)

(in thousands, except per share and unit data)

(unaudited)

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Note Regarding Funds From Operations

Digital Realty Trust calculates Funds from Operations, or FFO, in accordance with the standards established by the National Association of Real Estate Investment Trusts, or NAREIT. FFO represents net income (loss) available to common stockholders and unitholders (computed in accordance with U.S. GAAP), excluding gains (or losses) from sales of property, real estate related depreciation and amortization (excluding amortization of deferred financing costs) and after adjustments for unconsolidated partnerships and joint ventures. Management uses FFO as a supplemental performance measure because, in excluding real estate related depreciation and amortization and gains and losses from property dispositions, it provides a performance measure that, when compared year over year, captures trends in occupancy rates, rental rates and operating costs. Digital Realty Trust also believes that, as a widely recognized measure of the performance of REITs, FFO will be used by investors as a basis to compare our operating performance with that of other REITs. However, because FFO excludes depreciation and amortization and captures neither the changes in the value of our properties that result from use or market conditions, nor the level of capital expenditures and leasing commissions necessary to maintain the operating performance of our properties, all of which have real economic effect and could materially impact our financial condition and results from operations, the utility of FFO as a measure of our performance is limited. Other REITs may not calculate FFO in accordance with the NAREIT definition and, accordingly, our FFO may not be comparable to such other REITs’ FFO. Accordingly, FFO should be considered only as a supplement to net income as a measure of our performance.

Core Funds from Operations

We present core funds from operations, or CFFO, as a supplemental operating measure because, in excluding certain items that do not reflect ongoing revenue or expense streams, it provides a performance measure that, when compared year over year, captures trends in our core business operating performance. We calculate CFFO by adding to or subtracting from FFO (i) termination fees and other non-core revenues, (ii) significant transaction expenses, (iii) loss from early extinguishment of debt, (iv) costs on redemption of preferred stock, (v) significant property tax adjustments, net and (vi) other non-core expense adjustments. Because certain of these adjustments have a real economic impact on our financial condition and results from operations, the utility of CFFO as a measure of our performance is limited. Other equity REITs may not calculate CFFO in a consistent manner. Accordingly, our CFFO may not be comparable to other REITs’ CFFO. CFFO should be considered only as a supplement to net income computed in accordance with GAAP as a measure of our performance.

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