Method for managing green power of a virtual machine cluster

摘要

A method for managing green power determines if how many physical machines should run or be shut off with the gross occupied resource weight ratio of the virtual machine cluster. The standby physical machine in the non-running physical machines is elected and woke up to join as one of the running physical machines; one of the running physical machines is elected as a migration physical machine with the virtual machines therein being moved to other running physical machines, and then shut off. The resource allocation process is conducted to distribute loads of the running physical machines such that the total numbers of the running physical machines are capable of being dispatched flexibly to achieve the object of green power management.