Equinix confirmed that the outage started at its LD8 site in London’s Docklands where it has nine server warehouses which look after more than 600 businesses.
The company said it experienced a power problem “with one of its UPS system at 8/9 Harbour Exchange (LD8)”. It said it was carrying out a full investigation into the incident to identify the root cause of the fault.
This is not the first time that Telecity has experienced power problems. It had a major problem at its Sovereign House data centre last year which took two days to fix.
A spokesman from the company said: “Equinix can confirm that we experienced a brief outage at the former Telecity LD8 site in London earlier this morning. This impacted a limited number of customers, however service was restored within minutes. Equinix engineers are on site and actively working with customers to minimise the impact.”
A BT spokeswoman said the power problem affected around 10 percent of internet usage. But the problem has now been fixed and services have been restored.