Following three types of the Migration function can be used for a cluster system in a KVM environment:
Live Migration
Transferring an active guest OS.
Offline Migration
Transferring a suspended guest OS.
Migration by Export/Import
Exporting/Importing the XML setup files of stopped guest OSes.
For the cluster configurations which are available for the KVM migration function, see "2.2.1 Virtual Machine Function."
Note
In the migrated guest OS, virtio block storages are added under the device name "vdpcl". Note the following points to add virtio block storages for migration.
Keep the number of virtio block storages in guest OSes within 27 devices except the device (vdpcl) to be added for migration.
Do not use "vdpcl" for the device name of virtio block storages in guest OSes.
