Patent ID: 9122466
Filing Date: 2015-09-01
Classification: G06F,H02J

Abstract:
1. A method of reconfiguring a power system for computing devices in a rack, comprising: establishing a back-feed to computing devices in a rack computing system that is receiving power from a primary power source, wherein establishing the back-feed comprises coupling a set of back-feed lines from a donor power source to one or more output receptacles of a rack power distribution unit of the rack computing system such that the set of back-feed lines supplies power from the donor power source to the computing devices; coupling an automatic transfer switch in parallel with the set of back-feed lines, wherein an alternate source ATS input of the automatic transfer switch is coupled to the donor power source and wherein an ATS output of the automatic transfer switch is coupled to a power input of the computing devices such that the computing devices receive power from the donor power source via the automatic transfer switch; disabling the set of back-feed lines from the computing devices; coupling a normal ATS input of the automatic transfer switch to a primary power source for the reconfiguration; and transferring, by the automatic transfer switch, the computing devices from the donor power source to the primary power source for the reconfiguration.