Our main electrical panel is duplicated with an ‘A’ side and ‘B’ side so every server has two completely independent power feeds for redundancy.
Multiple SDMO 1.1MVA generators for emergency power are tested monthly & configured in an N+1 set up. In the unlikely event the mains power fails, the entire data centre load is supported.
Our ‘A’ side room of UPS batteries is duplicated on the ‘B’ side. The batteries support power to servers if there is a transient or disturbance on the mains load or during time taken for generators to start.
The UPS filter on our 400kVA UPS units cleans the power through an inverter/rectifier and isolation transformer so the power supplied to the servers is stable and reliable.
Above our transformers and generators a gantry carries our busduct – this leads the power from the transformers and generators back into the building and is more efficient than using copper cables.
Our control system for the data centre allows us to manually release the gas extinguishant to put out any fire instantly. We have a total of 85 fire extinguishant bottles, each 80 litres at 300 bar pressure. Fire beacons and sounders are in place to alert personnel to evacuate in case of an emergency.
Warm water from inside the data centre passes through chilled water pipework and returns to the data centre cold. To remove the heat from the water we use a cooling chiller combination with high surface area for extra efficiency.
Louvers allow cold air into the data floor while the air conditioning units extract hot air from the servers, cool it, and recirculate it into the room. Each unit cools over 250kW of heat at peak usage although we usually run at much lower load because we have an N+2 configuration. This means two units can fail or go out of service for maintenance without impacting the performance of the cooling system.