Disk group split/join
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Disk group split/join

One or more volumes, such as snapshot volumes, can be split off into a separate disk group and deported. They are then ready for importing on another host that is dedicated to off-host processing. This host need not be a member of a cluster but it must have access to the disks on which the volumes are configured. At a later stage, the disk group can be deported, re-imported, and joined with the original disk group, or with a different disk group.

Note:

As space-optimized instant snapshots only record information about changed regions in the original volume, they cannot be moved to a different disk group. They are therefore unsuitable for the off-host processing applications that are described in this document.

The contents of full-sized instant snapshots must be fully synchronized with the unchanged regions in the original volume before such snapshots can be moved into a different disk group and deported from a host.
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