Patent ID: 8099615

Claim:
A method for power management, comprising: gathering resource usage data for a first blade and a second blade on a blade chassis; performing a first migration of each virtual machine (VM) executing on the first blade to the second blade based on the resource usage data and a first migration policy, wherein the first migration policy defines when to condense the number of blades operating on the blade chassis; powering down the first blade after each VM executing on the first blade is migrated from the first blade; monitoring performance of each VM executing on the second blade; identifying the second blade as failing to comply with a performance standard in a second migration policy, wherein the second migration policy defines when to expand the number of blades operating on the blade chassis; selecting a set of virtual machines executing on the second blade to migrate to a third blade based on the second migration policy; powering up the third blade after identifying the second blade as failing to comply with the performance standard; and performing a second migration of the set of virtual machines to the third blade.