Rackspace cooling system
The datacentre has a power usage effectiveness (PUE) rating of 1.7, though Rackspace hopes to lower this to an average of 1.59 once the third data hall is built.
Cooling is achieved via computer room air-conditioning (Crac) units that pass cold air through the underfloor plenum. The current is then lifted into the servers and expelled as hot air at the back. Unlike numerous other datacentres, the racks are not enclosed.
Photo credit: Jack Clark
See Inside Rackspace's UK cloud datacentre for more photos.
Selena has been at TechRepublic since 2002. She is currently a Senior Editor with a background in technical writing, editing, and research. She edits Data Center, Linux and Open Source, Apple in the Enterprise, The Enterprise Cloud, Web Designer, and IT Security blogs.