Rackspace Hosting Australia selects Digital Realty for its first data centre in Sydney

SYDNEY, August 29, 2012. Digital Realty Trust, Inc. (NYSE: DLR), a leading global provider of data center solutions, announced today that it has signed a new 480 kW Turn-Key FlexSM lease with Rackspace Hosting Australia Pty Limited, at its site in Sydney. The lease was signed in the second quarter of 2012.

“We are very pleased to be partnering with Rackspace on the launch of its first data centre in Australia,” said Michael F. Foust, Chief Executive Officer for Digital Realty. “We have made a long term commitment to serve local and global customers looking for high quality, cost effective data centre solutions in this important, dynamic market. Along with our lease with National Australia Bank at our site in Melbourne, we believe this agreement represents our position as a provider of choice for the Australian market.”

Located in Erskine Park, Digital Realty’s first 5.76 MW data centre facility is scheduled to open in November 2012. The site is capable of supporting approximately 18,600 square meters of data centre development with over 11.5MW of IT capacity. Digital Realty also purchased a development site at Deer Park in the Western Melbourne Region where the first of two planned facilities is scheduled for completion in early 2013.

“Our ability to deliver secure, reliable and cost effective data centre solutions globally is a significant benefit to customers, such as Rackspace, which is an existing customer of ours in the USA”, said Kris Kumar, Senior Vice President & Regional Head, Asia Pacific, for Digital Realty. “When combined with our operating expertise, unmatched financial resources and global supply chain, this energy-efficient facility will bring a Tier 3 certified data centre to customers seeking institutional-quality space in Australia.”

Digital Realty’s Turn-Key Flex data centre solution is a modular approach to delivering secure, enterprise quality data centre space to meet customers’ just-in-time requirements. Designed to provide maximum flexibility, reliability and efficiency, each Turn-Key Flex facility comes fully commissioned with dedicated electrical and mechanical infrastructure. Utilising Digital Realty’s proprietary POD Architecture® and extensive supply chain, Digital Realty’s next generation Turn-Key Flex solution is designed for the future and ready today.

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 108 properties, excluding three properties held as investments in unconsolidated joint ventures, comprise approximately 20.8 million square feet as of July 25, 2012, including 2.3 million square feet of space held for redevelopment. Digital Realty's portfolio is located in 32 markets throughout Europe, North America, Asia 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.

For Additional Information

A. William Stein Chief Financial Officer and Chief Investment Officer Digital Realty Trust, Inc. +1 (415) 738-6500 Pamela M. Garibaldi Vice President, Investor Relations and Corporate Marketing Digital Realty Trust, Inc. +1 (415) 738-6500

David Frost PR Deadlines, for Digital Realty +61.2.4341 5021