About migrating Virtual Machine in VCS environment


About migrating Virtual Machine in VCS environment
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VCS supports live or online migration, also known as Virtual Machine Migration for HP Integrity Virtual Machines (IVM). Online migration enables a running guest and its applications to be moved from one VM Host to another without service interruption. All guest I/O connections to storage and networks remain active throughout the online migration, and the guest and all its applications continue operating without a reboot or an application restart.

The basic virtual machine migration environment includes a source machine and a target machine. Both the machines must:

Run Integrity VMs and must be able to run the guests.
Conform to their operating system requirements and restrictions.
Provide the allocated resources to the guest.

With the hpvmmigrate command, you can move the following to a target VM Host system:

An offline or non-running virtual machine (offline migration)
A live and online virtual machine (online migration) running a guest operating system
Applications from a source VM Host system

For offline migration, you can use the hpvmmigrate command on HP Integrity Virtual Machines Version 1.2 and later. The Online VM Migration feature for online guests is available starting with HP Integrity Virtual Machine Version 4.2.