Filter
Top Products
Chapter 15 Control of VM Environments
This chapter explains the Resource Orchestrator functions that are specific to VM guests and VM hosts.
Some functions may or may not be available depending on the server virtualization software used. Refer to "D.1 Common Functions of
Server Virtualization Software" in the "Design Guide VE" for details.
Other functions are similar in use to those available for regular physical OSs (without server virtualization software).
15.1 Migration of VM Guests between Servers
This section explains how to migrate a VM guest to a VM host on a different physical server.
Two methods of VM guest migration are available in Resource Orchestrator. Although such methods are named differently depending on
the server virtualization software used, Resource Orchestrator makes use of the following naming convention.
For details on migration pre-requisites and terminology, refer to "D.3 Functional Differences between Products" in the "Design Guide
VE".
- 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. A VM guest after migration is set to the same power status as it was before
the migration.
The availability of those methods depends on the power status of VM guests, as described below.
Table 15.1 Migration Methods Available for Each Power Status
VM Guest Power Status
Migration Method
Cold migration Live migration
ON Available Default
OFF Default N/A
Default: This method is available and selected by default.
Available: This method is available.
N/A: This method is not available.
A VM guest after migration is set to the same power status 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 to the desired post-migration power status before performing migration.
Use the following procedure to migrate a VM guest.
1. In the ROR console server resource tree, right-click a VM guest to migrate and select [Migrate VM Guest] popup menu.
2. The [VM Guest Migration] dialog is displayed.
Set the following items:
Destination
Select a destination VM host.
Migration Method
Select the desired migration type.
3. Click <OK>.
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.
For details, refer to "3.2 rcxadm server" in the "Reference Guide (Command) VE".
- 111 -