Method and system for migrating a virtual machine

摘要

An exemplary embodiment of the present invention provides a method of migrating a virtual machine. The method comprises replicating a source storage device corresponding to the virtual machine to a target storage device through replication links. The method also comprises receiving a migration state that indicates initiation of a migration of the virtual machine from a source server to a target server. The method also comprises collecting storage system status information of the source storage device and storing the storage system status information to a persistent store accessible to the target server. The method also comprises sending memory states and central processing unit (CPU) states to the target server through a communications network. The method also comprises performing a failover of the virtual machine from the source server to the target server and from source storage device to target storage device.