12.4. Manually 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 high. Note that when bringing a server down for maintenance migration is triggered automatically, manual migration is not required. Migration of virtual machines does not cause any service interruption.
  1. Click the Virtual Machines tab.
  2. Select the entry for the virtual machine that you want to migrate.
    • With the entry for the virtual machine still selected, click the Migrate button; or
    • Right click the entry for the virtual machine and select Migrate in the menu that appears.
  3. The Red Hat Enterprise Virtualization Manager is able to automatically select the host to migrate the virtual machine to or you are able to manually specify a host.
    • Choose Select Host Automatically to allow Red Hat Enterprise Virtualization Manager to select the destination host; or
    • Choose Select Destination Host to manually select a host. You must also select the destination host from the list provided. Only active hosts within the cluster are listed.

    Note — Automatic Host Selection

    Virtual Machines migrate within their designated host cluster. When the Select Host Automatically option is selected the system determines the host to which the virtual is migrated, according to the load balancing and power management rules set up in the cluster policy.
  4. Click OK to commence migration and close the dialog box.
  5. Result:
    The virtual machine is migrated. Once migration has completed the Host column will update to display the host the virtual machine has been migrated to.