Patent ID: 8560662
Filing Date: 2013-10-15
Classification: G06F,H04L

Abstract:
1. At an update computing device, said update computing device connected to a plurality of other computing devices arranged in a computer cluster, said update computing device configured to perform a maintenance operation to update said plurality of other computing devices in a specified manner, at least one further update computing device configured to perform a different maintenance operation to update said plurality of computing devices in a different specified manner, a method for updating at least a subset of computing devices selected from among said plurality of computing devices, said method comprising: identifying at least a subset of computing devices, selected from among said plurality of computing devices, that are to be updated in said specified manner; for each computing device in said at least a subset of computing devices, locking said computing device for performance of said maintenance operation, including: subsequent to locking each computing device in said at least a subset of computing devices, updating each computing device in said at least a subset of computing devices in said specified manner, including for each computing device: