London, United Kingdom

London-Surrey (LON02) Datacenter

Sirius 2, 122 Oyster Lane
United Kingdom
KT14 7JU

Facility Details:

  • 3 x Riello UPS units giving N+1 resilience
  • High input power factor 0.99
  • Power walk-in function that ensures progressive rectifier start up
  • High performance filter, protecting its upstream power supply sources from harmonics
  • Monitored by Riello and datacenter in real time
  • Monitored continuously, manually checked daily by the datacenter technical team, an automated daily battery test and preventative maintenance carried out by Riello twice a year
  • Engine – Perkins 3012 TAG 3A Diesel
  • Capacity – 880kVA (Maximum ) 800kVA (Continuous)
  • Starting mechanism – fully automated on mains failure including mains sensing Changeover Contactors
  • Enclosure – close fit drop over acoustic canopy
  • Fuel Consumption – 154.7 Litres per hour @ 100% load
  • Fuel Tank – 5,000 Litres
  • 12 hour refuelling agreement with the ability to refuel on-the-fly means generator can be run continuously in the event of a prolonged mains outage
  • Single power feed to racks standard (Maximum 16Amps with 20Amp breaker)
  • High density power feeds to racks available (Maximum 32Amps with 40Amp breaker)
  • Dual power feeds (A+B from separate distribution boards and UPS units) available
  • Static transfer switches available for dual feed to single power bar
  • Standard racks are rated at 4KW / 16Amps per position but high density 8KW / 32Amp racks available upon request
  • On-site sub-station with a protected ring feed from the national grid
  • Close proximity to local substation step-down transformers means we can upgrade our power to almost any level in the future (though not up to ‘1.21 Jigowatts!’ as one of our geekier engineers asked)
  • 6 x Airedale DX CRAC units (N+1 cooling capacity)
  • Brand new cold aisle containment system recently installed throughout datafloor to improve air-conditioning efficiencies, increase server cooling capacity and allow for higher density racks
  • Current configuration delivers air at 22 degrees centigrade to all cold aisle corridors
  • FM-200 gas fire suppression system in both datafloor and UPS room
  • 4 x VESDA (Very Early Smoke Detection Apparatus) units strategically positioned throughout datafloor
  • 158 x ionic and optical smoke detectors strategically placed throughout the datafloor (both above and below the sub-floor plenum)
  • Beam smoke detectors strategically placed in loading bay area
  • FM-200, VESDA, smoke and beam detectors connected to a Morley (Honeywell) intelligent multi-protocol fire alarm control panel
  • Morley Panel linked to RedCare system to automatically call fire brigade if necessary


  • 24 x 7 x 365 manned facility
  • Full external perimeter colour / low light ‘Pan Tilt & Zoom’ (PTZ) cameras
  • Internal infrared cameras covering all doors, entrances and exits
  • CCTV footage stored for 91 days
  • Movement detectors covering entire external perimeter and connected to an annunciator
  • External tannoy system
  • Building and car park located in gated compound with fenced perimeter (remotely locked after 6.30pm Mon – Sat and all day Sun)
  • Proximity access cards for your nominated staff members are required on all doors leading to and within the datafloor
  • Multi-Pass! Our access cards can be pre-programmed to give privileged access to certain areas of the data centre
  • Anti-passback on main datafloor door
  • Individually locked racks with 3-digit combination code
  • Optional caging with key or HID (proximity) locks

London Backbone Carriers

  • Telecom Italia
  • Cogent
  • Global Crossing
  • LonAP Peering