Veritas Storage Foundation Intelligent Storage Provisioning 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

115Administering instant snapshots
Creating instant snapshots
Note: When applied to a volume set or to a component volume of a volume set,
this operation can result in inconsistencies in the snapshot hierarchy in the case
of a system crash or hardware failure. If the operation is applied to a volume set,
the -f (force) option must be specified.
Removing an instant snapshot
When you have dissociated a full-sized instant snapshot, you can use the
vxassist command to delete it altogether, as shown in this example:
# vxassist -g mydg remove volume snap2myvol
You can also use this command to remove a space-optimized instant snapshot
from its cache.
See “Removing a cache” on page 101.
Splitting an instant snapshot hierarchy
Note: This operation is not supported for space-optimized instant snapshots.
The following command breaks the association between a snapshot hierarchy
that has the snapshot volume, snapvol, at its head, and its parent volume, so that
the snapshot hierarchy may be used independently of the parent volume:
# vxsnap [-f] [-g diskgroup ] split snapvol
Note: The topmost snapshot volume in the hierarchy must have been fully
synchronized for this command to succeed. Snapshots that are lower down in
the hierarchy need not have been fully resynchronized.
See “Controlling instant snapshot synchronization” on page 118.
The following command splits the snapshot hierarchy under snap2myvol from
its parent volume:
# vxsnap -g mydg split snap2myvol
Note: When applied to a volume set or to a component volume of a volume set,
this operation can result in inconsistencies in the snapshot hierarchy in the case
of a system crash or hardware failure. If the operation is applied to a volume set,
the -f (force) option must be specified.