Administrator Guide

If you detach a thin clone, the resulting new standard volume has in-use space equal to the combined shared space and unshared
space, as shown in the Shared Space table in the Volume Status window.
Restrictions on Template Volumes and Thin Clones
With a few exceptions, all normal volume attributes and operations apply to template volumes and thin clones as specied in Table 37.
Template Volume and Thin Clone Restrictions.
Table 37. Template Volume and Thin Clone Restrictions
Attribute or Operation Restriction
Snapshots You cannot restore a template volume from a snapshot.
Thin provisioning You cannot disable thin provisioning on a template volume or thin clone.
Permissions You cannot set template volumes to read-write permission.
Volume collections You cannot include a template volume in a volume collection.
Scheduling operations You cannot schedule a snapshot or replication operation for a template volume.
RAID preference Thin clones inherit the RAID preference, if any, of the template volume.
Member binding Thin clones inherit the member binding setting, if any, of the template volume.
Cloning Cloning a template volume creates a new template volume with a new name and iSCSI target,
but the same reported size, pool, and contents as the original volume at the time of the cloning.
Cloning a thin clone creates a new thin clone with a new name and iSCSI target, but the same
reported size, pool, contents, and relationship to the template volume as the original thin clone
at the time of the cloning.
Resizing You cannot change the reported size of a template volume. However, you can change the thin-
provisioning settings.
Pool move Thin clones inherit the pool setting of the template volume. If you move the template volume to
a dierent pool, the thin clones also move.
Replication You can replicate a template volume only one time. You cannot replicate a thin clone until you
replicate the template volume to which the thin clone is attached.
Failover You can permanently promote a template replica set to a template volume only if you rst
permanently promote all the attached thin clone replica sets to thin clones.
Failback You cannot demote a template volume to a failback replica set. You cannot fail back a template
volume. To fail back a thin clone volume, the template volume must exist on the primary group.
Deletion You cannot delete a template volume if it has thin clones or failback thin clone replica sets
attached to it.
You cannot delete a recovery template volume if any recovery thin clone volumes, thin clone
replica sets, or permanently promoted thin clone replica sets are still attached to the volume.
Synchronous replication See About Using Thin Clones and Templates with Synchronous Replication.
Convert a Standard Volume to a Template Volume
You can convert standard volumes to a template volume. The following prerequisites and considerations apply:
• When you convert a standard volume to a template volume, the template volume is thin provisioned, read-only, and oine. You
can set the volume online at any time.
• When you convert to a template volume, the group disables any schedules that include the volume. If you later convert the
template volume to a standard volume, the group does not automatically enable the schedules.
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