Patent ID: 8924781
Filing Date: 2014-12-30
Classification: G06F,Y02D

Abstract:
1. A method of managing power load in a data center, the method comprising: determining that a utility power source for said data center has failed; changing said data center to receive power from an Uninterruptable Power Supply (UPS) instead of from said utility power source; while said data center is operating on said Uninterruptable Power Supply (UPS), using a power management policy to throttle servers in said data center to a power level below a collective capacity of a plurality of backup generators at said data center, said collective capacity being less than a maximum amount of power drawn by equipment in said data center; after said servers have been throttled, changing power for said data center from said Uninterruptable Power Supply (UPS) to said generators; causing said collective capacity of said generators to be less than an amount of power that is drawn by said data center under said data center's maximum load by taking a generator at said data center out of service; after said changing of power for said data center to said generators, determining that said utility power source is available; changing said data center back to said utility power source from said generators; and ceasing to throttle said servers.