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Let's Talk VIDEO: UPS (Uninterruptible Power Supply)

One of the largest benefits of hosting your IT equipment in a data centre is that they will be protected against power failure. To achieve this data centres use uninterruptible power supplies (UPSs), sophisticated machines which careful store and control the power coming into the data centre.

[Read about how 4D has never had a power failure]

4D's COO, Steve Wright, explains how UPSs within a data centre work.

HubSpot Video

Why UPSs are important

A loss of power to IT equipment is a threat to any business. It can be extremely expensive to replace damaged IT equipment, and the costs are incalculable if important data is lost forever.

Additionally, downtime caused by power issues will frustrate your staff, damage your reputation, and might annoy customers. It could also cost you more money if you have to pay out SLAs.

Power failure to a company's IT equipment is extremely costly in a number of ways, and not just financially, 

How UPSs work

The UPS plays a crucial role, safeguarding a data centre and ensuring services continue to run. It's essentially a very large battery, protecting your IT equipment, with two main functions- continuity of power and smoothing of power.

Continuity of power ensures that in the event of a mains power failure, your IT equipment stays on, avoiding downtime and preventing any damage to equipment or data loss.

Generally the UPS powers banks of batteries keep the data centre and it's equipment powered for around 30 minutes during a power failure. Most data centres also have generators  which can then be turned on very quickly (typically around ten seconds), and these keep the data centre powered indefinitely, but only thanks to the initial protection of the UPS.

[Watch our video - Let's Talk: Generators]

Smoothing of power  protects your IT equipment against surges from the national grid, meaning a sophisticated UPS doesn't just keep your system running when there's a power failure, but will also protect it from a power surge that could overload your equipment.

Our blog Beginner's Guide to Server Room UPSs explains UPSs in greater details.


To take advantage of sophisticated UPS deployment you will need to host your IT equipment in a colocation data centre. For more information about data centres see our video guide: What is a Data Centre? and if you think your company would benefit from working with a data centre, then get in touch.

Graphic the advantages of colocation