6.7.4. Migrating Virtual Machines
A running virtual machine can be migrated to any host within its designated host cluster. This is especially useful if the load on a particular host is too great, and is essential before bringing a server down for maintenance (migration is automatic in this case). Migration of virtual machines does not cause any service interruption.
The virtual machine is migrated to another host in the cluster. Shortly after, the Host column displays the new host to which the virtual machine has migrated.