By the numbers: Colt datacentre

Summary:A look at the numbers behind Colt's flagship facility for modular datacentres, London 3 in Welwyn Garden City, which features the company's own design

The new processing halls within Colt's large datacentre on the fringes of London are designed to offer a low PUE, combined with a short build time and ease of installation.

The London 3 facility is the flagship for Colt's new method of building modular datacentres. The company plans to roll out the design method across its European datacentres, including ones in its other core markets of France and Germany.

Colt datacentre

Guy Ruddock, Colt's director of datacentre infrastructure services, gives ZDNet UK a tour of Colt's large datacentre on the fringes of London. Photo credit: Jack Clark

 Facility  Two modular halls within London 3, Colt's 113,021-square-foot facility in Welwyn Garden City
 Power usage effectiveness (PUE)  1.21
 Size  10,763 square feet across two modules
 Racks  408
 KW per rack  Average of 4KW. Maximum drawdown of 20KW, with dummy panelling either side 
 Cooling  Free cooling (fan-enabled). Direct-expansion cooling used for less than 300 hours per year
 Hardware  Complete variety, due to the co-location
 Compute capacity  Not applicable, as co-location environment
 Designed by   Colt
 IT power   750-825KW per module 
 Opened   April 2010 

See more of the datacentre tour on ZDNet UK.

Topics: Datacentre Tour, Networking


Jack Clark has spent the past three years writing about the technical and economic principles that are driving the shift to cloud computing. He's visited data centers on two continents, quizzed senior engineers from Google, Intel and Facebook on the technologies they work on and read more technical papers than you care to name on topics f... Full Bio

Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.

Related Stories

The best of ZDNet, delivered

You have been successfully signed up. To sign up for more newsletters or to manage your account, visit the Newsletter Subscription Center.
Subscription failed.