Digital Realty Trust, Inc. has announced that it has achieved "five 9s" of uptime for its data center suites for the ninth consecutive year, with 99.999% availability throughout 2015. This level of availability translates to less than five-and-a-half cumulative minutes of downtime over the course of the year. Uptime metrics are based on a comprehensive evaluation of data center suites owned and operated by Digital Realty worldwide, using standard industry methodology.

"We are pleased to announce that this is the ninth consecutive year Digital Realty has provided our customers with the highest level of reliability in uptime," said A. William Stein, Digital Realty's chief executive officer. "Our standards-based approach to construction, operations and a rigorous maintenance program, coupled with an industry-leading team of experts managing our data center suites around the globe, allow us to consistently deliver solutions that provide the reliability our customers require to run their businesses."

Over the past nine years, the number of data center suites operated by Digital Realty has increased from 78 to 452, which translates to over 1.173 billion minutes of operational experience.

"These results reflect how well our data center suites are designed, built and operated, as well as our discipline in constructing and maintaining these mission-critical facilities," said Jarrett Appleby, the company's chief operating officer. "In addition, they are a testament to our unwavering focus on the customer. Achieving five 9s is not only about the reliability of our systems and maintenance practices, but also a reflection of our commitment to our customers' success and our impact on the digital economy."