This section explains how to migrate a VM guest to a VM host on a different physical server.
Two types (methods) of VM guest migration are available in Resource Coordinator VE. Although such types are named differently depending on the virtualization software used, Resource Coordinator VE makes use of the following naming convention.
For details on migration pre-requisites and terminology, refer to "A.3 Functional Differences between Products" in the "ServerView Resource Coordinator VE Setup Guide".
Live migration: migration of a VM guest without shutting down its VM host.
Cold migration: migration of a VM guest while its VM host is shut down. The resulting power state of a migrated VM guest is the same as it was before migration.
Availability of those migration types depends on the power state of VM guests, as described below.
VM Guest Power State | Migration Type | |
|---|---|---|
Cold Migration | Live Migration | |
ON | Available | Default |
OFF | Default | N/A |
Default: available and selected by default.
Available: available.
N/A: not available.
A VM guest after migration is set to the same power state as it was before the migration. For example, performing a cold migration on an operating VM guest will temporally shut it down during migration, before starting it up again after completion of the migration process. It is therefore recommended to set the target VM guest in the desired post-migration state before starting a migration.
Use the following procedure to migrate a VM guest.
In the RC console resource tree, right-click on the VM guest to migrate and select "Migrate" from the popup menu.
The [VM Guest Migration] dialog is displayed.
In the [VM Guest Migration] dialog, set the following items.
Select a destination VM host.
Select the desired migration type.
Click the <OK> button
The selected VM guest is migrated to its new host.
VM guests can be migrated from the command-line, using the "rcxadm server migrate" command. Refer to "3.2 rcxadm server" in the "ServerView Resource Coordinator VE Command Reference" for details.
