HP Integrity Virtual Server Manager 6.3 User Guide

The Migrate Guest wizard is started by selecting Tools→Migrate Guest... from the Integrity Virtual
Server Manager menu bar. The menu item is enabled from the VM Properties view, from which
you can migrate the one viewed guest, or from a tab on which one or more guests are selected,
such as the VSP Virtual Servers tab, from which you can migrate multiple guests at the same time.
For more information about starting the wizard, see
“Starting the Migrate Virtual Machine wizard” (page 100).
The Migrate Guest wizard guides you through a two-step procedure. The screen for the first step
prompts you to specify the target VSP. The screen for the second step allows you to preview the
HP Integrity Virtual Machine commands that will be invoked to initiate the migration and allows
you to initiate the migration.
Using the Migrate Guest wizard, you can migrate guests from the VSP you are currently using with
Integrity Virtual Server Manager to another VSP; you cannot use the wizard to migrate guests from
another VSP to the current Integrity Virtual Server Manager VSP.
While a guest is being migrated to another VSP, you cannot stop, start, restart, modify, or delete
that guest. You can continue using Integrity Virtual Server Manager for other purposes.
NOTE: If the guest is configured as a Serviceguard package, the wizard allows you to migrate
the guest online or offline. However, you cannot migrate a guest that is configured as a Serviceguard
cluster node.
When migrating a guest that is configured as a Serviceguard package, Serviceguard protection
is suspended temporarily during the migration.
Capacity Advisor cannot collect utilization information for a guest that is being migrated.
For more information about Serviceguard and Capacity Advisor requirements and recommendations
pertaining to guest migration, see “Planning requirements and recommendations” (page 98).
Planning requirements and recommendations
Successful migration of a VM requires that the source and target hosts be configured appropriately.
If they are configured properly before migration of a VM, the migration task completes more
quickly. Configuration requirements for online migration are more elaborate than for offline
migration.
Some of the basic migration requirements include the following; for complete details, see the HP-UX
vPars and Integrity VM Administrator Guide manual:
• For online migration, the source and target VSPs must be running HP Integrity VM Version 4.1
or later.
• The source and target VSPs must conform to the operating system requirements, and both must
be able to provide the allocated resources to the VM being migrated.
• The target VSP must be accessible from the source VSP.
• Resources used by the VM must be configured symmetrically on both the source and target
VSP.
• You can migrate guests that use both the virtual I/O (VIO) and the accelerated virtual I/O
(AVIO) drivers for storage and network. Only whole disk SAN storage and ejected file-backed
DVDs can be migrated while the VM is online. File and logical volume backing storage are
not supported for online migration of VMs.
• Online migration requires that both the source and target VSP be licensed and enabled for
such migration. The licensing is included with a bundle that must be installed on each VSP;
for more information, see the HP-UX vPars and Integrity VM Administrator Guide manual.
• Online VM migration requires that the VM be enabled for online migration (the VSP
administrator can enable a VM by using the hpvmmodify -x
online_migration=enabled command).
98 Working with VMs or vPars