SAN FRANCISCO and DUBLIN, Ireland, October 2 /PRNewswire/ --

Digital Realty Trust, Inc. (NYSE: DLR), the leading owner and manager of corporate and Internet gateway datacentres, has promoted Bernard Geoghegan to Senior Vice President. In this role, Mr. Geoghegan is responsible for Digital Realty Trust's growing operations in Europe, which includes 12 datacentre properties in the Dublin, London, Paris, Amsterdam and Geneva markets. Mr. Geoghegan will oversee the management and operations of Digital Realty Trust's European portfolio, which comprises nearly 140,000 square metres including 23,000 square metres of datacentre space currently under construction. In addition, he will take a leadership role developing international opportunities in other regions including Asia.

"Digital Realty Trust's operations in Europe continue to expand, and with his extensive technology management experience in Europe and the U.S., Bernard is the ideal person to serve as our senior manager in this important market," said Michael F. Foust, CEO of Digital Realty Trust. "Many of our customers are global organisations whose IT infrastructure is distributed across Europe and North America. We are unique in having a global portfolio of properties that allows customers to partner with a single provider to meet all of their datacentre needs regardless of geography. Our depth of experience with owning, building and operating datacentres coupled with a long-term ownership model is rare in an industry that has so many developer-oriented owners with a short-term window and little organisational depth. Our value proposition is driving our growth in Europe, and Bernard will play a key role in ensuring that we take advantage of that market opportunity as we strategically grow our portfolio."

Prior to joining Digital Realty Trust, Mr. Geoghegan was the CEO of Servecentric Ltd., a provider of Co-location and premium Managed Services to the Irish market. He has also held senior operations and IT roles at Worldport and Xerox Europe as well as IT management and software development roles with Pioneer Management, Informix Software Inc., Digital Equipment Corporation and Ashton-Tate.

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 Datacentre(TM) and Powered Base Building(TM) datacentre 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 74 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 datacentre tenants. Comprising approximately 12.9 million rentable square feet (1.2 million square metres) as of August 6, 2008, including 1.9 million square feet (177,000 square metres) 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 http://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 our international growth. These risks and uncertainties include adverse economic or real estate developments in the Company's international markets or the technology industry; general economic slow-downs or recession; construction and development delays; tenant bankruptcies; defaults under leases by tenants; increased interest rates; increased operating costs; failure to obtain necessary outside financing; decreased rental rates or increased vacancy rates; difficulties in identifying properties to acquire and completing acquisitions at all or at acceptable return levels; failure to successfully operate acquired properties and operations; failure of acquired properties to perform as expected; reductions in property values; failure to successfully redevelop properties acquired for such purpose or unexpected costs related thereto; failure to maintain the Company's status as a REIT; environmental uncertainties and risks related to natural disasters; financial market fluctuations; changes in foreign currency exchange rates; risks of operating in foreign markets; 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 United States Securities and Exchange Commission, or SEC, including the Company's annual report on Form 10-K for the year ended December 31, 2007 and the Company's quarterly reports on Form 10-Q for the quarters ended March 31, 2008 and June 30, 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 Pamela A. Matthews Chief Financial Officer and Investor/Analyst Information Chief Investment Officer Digital Realty Trust, Inc. Digital Realty Trust, Inc. +1-415-738-6500 +1-415-738-6500 Chris Crosby Sales & Technical Services Digital Realty Trust, Inc. +1-214-231-1350

Web site: http://www.digitalrealtytrust.com

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.