A photo tour of Digital Realty's newest London datacentre

Previous | Next Image 3 of 6

Resilience

This new facility in South West London completes Digital Realty's 'Surrey Triangle', which includes sites in Woking and Redhill.

Each of the datacentres are connected to each other so that a backup from another site can be provided in case of an outage.

However, all of the sites have been designed with a certain level of resilience built in. For example, Chessington has diverse network feeds and power supplies that enter the property from opposite ends in case one of the feeds experiences a problem.

The site is protected by a range of security features, including 29 round-the-clock CCTV cameras a raised perimeter fence and 24/7 manned gate. Access to the datacentre is controlled by key cards and biometric sensors. 

Datacentre resilience is measured on a tiered scale that goes from one to four, with one being the least resilient and four being the most. A Tier 3 datacentre has an expected availability of 99.982 percent uptime and features such as a dual power supply, in line with standards set by the Telecommunications Industry Association.