Michael Manos Joins Digital Realty Trust

SAN FRANCISCO - Manos to Serve as Senior Vice President of Technical Services

Digital Realty Trust, Inc. (NYSE: DLR), the world’s largest wholesale datacenter provider, announced today that Michael Manos is joining the Company to serve as its Senior Vice President of Technical Services. Manos joins Digital Realty Trust from Microsoft where he was General Manager of Data Center Services and was responsible for datacenter architecture, construction, design, operations and research for all Microsoft datacenters around the world. In his new position at Digital Realty Trust, Manos will oversee datacenter design and construction across the Company’s global portfolio of properties as well as oversee Technical Operations for the organization. Manos will also spearhead the launch of a new professional services offering that the Company will unveil shortly.

“If one were to make a list of the smartest, most respected and most influential people in the datacenter industry, Mike would no doubt be on everyone’s list and we are proud to have him join our team,” said Michael F. Foust, CEO of Digital Realty Trust. “We’ve had the opportunity to collaborate with Mike on numerous occasions through our work with Microsoft, and he shares our belief in the importance of advancing industrialization of the datacenter and the adoption of best practices. Mike was a tremendous innovator at Microsoft, and his role here at Digital Realty Trust will have an even bigger impact by enabling our customers to directly take advantage of his broad expertise in datacenter architecture, construction and operations.”

“During my time at Microsoft, I have been able to devote a significant portion of my time to industry education concerning datacenters, including development of industry standards and shaping the way companies design and build datacenters. That has been very rewarding. One of the most appealing aspects about joining Digital Realty Trust is that I will be able to do that on an even larger scale,” said Manos. “Digital Realty Trust has been leading a quiet revolution in the datacenter field that is impacting companies everywhere. It has assembled an incredibly talented team of experts in datacenter construction, energy efficiency and operations who have been on the front line of modernizing the way people around the world design and run datacenters. Joining Digital Realty Trust gives me a unique opportunity to play a significant role in creating this new vision of the datacenter and bringing those advancements to the industry as a whole. It’s a very exciting time to be in the datacenter field and an exciting time to be on the Digital Realty Trust team.”

Prior to joining Microsoft, Manos managed datacenter and network operations for the Disney’s Internet business unit, which included properties such as Disney.com, ESPN.COM, ABC.COM and Disney Park and Resorts. He has also held technology executive positions at Nuclio Corporation (which was acquired by Sun Microsystems), Rhythms NetConnections (acquired by Verizon), and O/E Systems. Manos attended the Illinois Institute of Technology and maintains multiple industry technical certifications.

About Digital Realty Trust, Inc.

Digital Realty Trust owns, acquires, redevelops, develops and manages technology-related real estate. The Company is focused on providing Turn-Key Datacenter(SM) and Powered Base Building(SM) datacenter solutions for domestic and international tenants across a variety of industry verticals ranging from information technology and internet enterprises, to manufacturing and financial services. Digital Realty Trust’s 75 properties, excluding one property held as an investment in an unconsolidated joint venture, contain applications and operations critical to the day-to-day operations of technology industry tenants and corporate enterprise datacenter tenants. Comprising approximately 13.0 million square feet as of February 26, 2009, including 1.6 million square feet of space held for redevelopment, Digital Realty Trust’s portfolio is located in 27 markets throughout Europe and North America. For additional information, please visit Digital Realty Trust’s website at www.digitalrealtytrust.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. These risks and uncertainties include the impact of the current deterioration in the global economy, including the turmoil in the financial and credit markets; the downturn of 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; decreases in real estate valuations and resulting impairment charges; our dependence upon significant tenants; bankruptcy or insolvency of one or more major tenants 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 for refinancing current debt obligations, undertaking or completing redevelopment, completing acquisitions or other purposes; increased interest rates and operating costs; our failure to repay debt when due or our breach of covenants or other terms contained in our loan documents; financial market fluctuations; changes in foreign currency exchange rates; our ability to manage our growth effectively; difficulty acquiring or operating properties in foreign jurisdictions; our failure to successfully operate acquired or redeveloped properties; risks related to joint venture investments, including as a result of our lack of control of certain of these 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; inability to successfully redevelop 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 public 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; changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; 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 United States Securities and Exchange Commission, including the Company’s annual report on Form 10-K for the year ended December 31, 2008. 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.

For Additional Information: A. William Stein Chief Financial Officer and Chief Investment Officer Digital Realty Trust, Inc. +1-415-738-6500 Pamela A. Matthews Investor/Analyst Information Digital Realty Trust, Inc. +1-415-738-6500 Chris Crosby Sales & Technical Services Digital Realty Trust, Inc. +1-214-231-1350

Source: Digital Realty Trust, Inc.

A. William Stein, Chief Financial Officer and Chief Investment Officer, +1-415-738-6500, or Pamela A. Matthews, Investor/Analyst Information, +1-415-738-6500, or Chris Crosby, Sales & Technical Services, +1-214-231-1350, all of Digital Realty Trust, Inc.