Patent ID: 9436516
Filing Date: 2016-09-06
CPC Classification: G06F

Claim Text:
1. A virtual machine management apparatus comprising: a virtual machine controller configured to migrate virtual machines between plural physical servers; a history storage configured to store, for each set of first virtual machines that were migrated to a same migration destination physical server parallel in time among the virtual machines migrated by the virtual machine controller, history information including a planning module, implemented by a processor, configured to determine as to whether or not it is possible to start migrating a planning target virtual machine, for which a new migration plan is to be created, to a candidate migration destination physical server of the planning target virtual machine at a candidate migration start time based on a residual resource amount of the candidate migration destination physical server, a resource consumption of the planning target virtual machine, a sum of resource consumptions of migration-scheduled virtual machines that are scheduled to start migrating to the candidate migration destination physical server at the candidate migration start time, and the history information.