Digital Realty Achieves 'Five 9s' of Uptime for Fourth Consecutive Year

Digital Realty Data Center Facilities Also Recognized for Facilities Management Excellence with Industry Award

SAN FRANCISCO, Oct. 25, 2011 /PRNewswire-Asia/ --Digital Realty Trust, Inc. (NYSE: DLR), a leading global wholesale datacenter provider, has achieved "five 9s" of uptime in its Turn-Key Datacenters® for the fourth consecutive year with 99.999% availability during 2010. These uptime metrics are based on a comprehensive evaluation of the Company's facilities worldwide using standard industry methodology.

Digital Realty has also been recognized for facilities management excellence by FM Global, the worldwide commercial and industrial property insurance provider. For the third consecutive year, FM Global has named Digital Realty as a recipient of the organization's annual award for continuous improvements in facilities management, including both management programs and physical protection initiatives designed to ensure facility uptime and reduce risks.

"This award from FM Global and the track record of five 9s uptime in our Turn-Key Datacenter facilities are a direct result of how well our data centers are designed, built and operated," said Dave Caron, Senior Vice President, Portfolio Management at Digital Realty. "We now have nearly one hundred properties around the world, including nearly 3.5 million square feet of Turn-Key Datacenter space. The consistently high uptime metrics we have achieved validate our standards-based approach to constructing and running data centers, which have been so successful in delivering solutions that ensure reliability for our customers."

Each Digital Realty Turn-Key Datacenter facility is physically secure and features a state-of-the-art power and cooling architecture that has been optimized for green operation. Every Turn-Key Datacenter is built using Digital Realty's proprietary POD Architecture® and uses metered power to ensure that clients pay only for the power that they use. The facility also comes standard with Digital Realty's PowerVU software, which enables centralized monitoring and management of data center power consumption, energy efficiency and load analysis.

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 97 properties, excluding two properties held as investments in unconsolidated joint ventures, comprise approximately 17.2 million square feet as of September 6, 2011, including 2.2 million square feet of space held for redevelopment. Digital Realty's portfolio is located in 30 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.

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 uptime metrics and our approach to building and operating our data center facilities. 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.  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.