Digital Realty Trust Appoints Kris Kumar as Regional Head, Asia Pacific

SAN FRANCISCO, May 18, 2010 - Digital Realty Trust, Inc. (NYSE: DLR), the world's largest wholesale
datacenter provider, announced today that Kris Kumar has joined the Company
as Regional Head, Asia Pacific, a new position at Digital Realty Trust. Mr.
Kumar will be based in Singapore and responsible for corporate activities in
Asia and the Pacific Rim, including Australia, Singapore, Hong Kong and
India. Mr. Kumar will be overseeing several initiatives, such as developing
relationships with partners and new customers in the region, identifying
strategic investment opportunities, and coordinating operations.

"Bringing Kris on board in this new position is a reflection of our
strategic commitment to the Pacific Rim and India. His technical expertise in
datacenters and his in-depth understanding of the datacenter markets in these
regions make him a great addition to our team. We are very pleased to welcome
Kris to the Company," said Michael F. Foust, CEO of Digital Realty Trust.
"Singapore, Hong Kong, Australia and the tech centers in India are strong
emerging markets for wholesale datacenter space. Kris's deep customer
relationships and technical expertise will be a tremendous asset to Digital
Realty Trust as we build a strong foundation for our future growth in the
region."

Kris Kumar comes to Digital Realty Trust with 28 years of experience in
the IT/data center infrastructure, property and marine industries.
Immediately prior to joining the Company, Mr. Kumar was the president and
co-founder of a specialized consulting and project implementation business
that conceptualized, business-planned and delivered facilities and move-in
ready data center projects for major corporate enterprises and international
telecom and IT companies across the Asia-Pacific region. Mr. Kumar also
served as a Marine Engineer in the Indian, British and American Merchant Navy
for 10 years. As a Chief Engineer he developed his extensive experience and
expertise in critical engineering systems, planning and design engineering
for uptime and reliability as well as maintenance systems, processes and
procedures. He earned a Bachelor's degree in Marine Engineering (Distinction)
and a Postgraduate degree in Facilities Management & Finance from Sydney
University.

About Digital Realty Trust, Inc.

Digital Realty Trust, Inc. owns, acquires, redevelops, develops and
manages technology-related real estate. The Company is focused on providing
Turn-Key Datacenter(R) and Powered Base Building(R) 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 85 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 15.1 million rentable square feet as of May
10, 2010, including 1.9 million square feet of space held for redevelopment,
Digital Realty Trust's portfolio is located in 27 markets throughout North
America and Europe. For additional information, please visit Digital Realty
Trust's website at www.digitalrealtytrust.com.

Turn-Key Datacenter, Powered Base Building and POD Architecture are
registered trademarks of Digital Realty Trust.

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 initiatives in the Asia Pacific
region. These risks and uncertainties include, among others, the following:
the impact of the recent deterioration in global economic, credit and market
conditions; 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; our failure to repay
debt when due 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 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 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 public
companies; our failure to maintain our status as a REIT; potential 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; and 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, 2009 and the Company's Quarterly Report on Form 10-Q for
the quarter ended March 31, 2010. 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
    Director of Investor Relations
    Digital Realty Trust, Inc.
    +1-415-738-6500

    Bernard Geoghegan
    SVP, International Operations
    Digital Realty Trust, Inc.
    +353-1-245-0650

A. William Stein, Chief Financial Officer and Chief Investment Officer, or Pamela A. Matthews, Director of Investor Relations, both at +1-415-738-6500, or Bernard Geoghegan, SVP, International Operations, +353-1-245-0650, all of Digital Realty Trust, Inc.