Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

# vxsnap -g dbdg make source=dbvol/snapvol=fri_bu/\
infrontof=thurs_bu/cache=dbdgcache
For more information on the application of cascaded snapshots, see the Veritas
Volume Manager Administrators Guide.
Refreshing an instant snapshot
Refreshing an instant snapshot replaces it with another point-in-time copy of a
parent volume.
To refresh one or more snapshots and make them immediately available for use,
use the following command:
# vxsnap [-g diskgroup] refresh snapvol [source=vol] \
[[snapvol2 source=vol2]...] [sync=yes|no]
If the source volume is not specified, the immediate parent of the snapshot is
used. For full-sized instant snapshots, resynchronization is started by default. To
disable resynchronization, specify the syncing=no attribute. This attribute is not
supported for space-optimized snapshots.
The snapshot being refreshed must not be open to any application. For example,
any file system configured on the volume must first be unmounted.
It is possible to refresh a volume from an unrelated volume provided that their
sizes are compatible.
You can use the vxsnap syncwait command to wait for the synchronization of
the snapshot volume to be completed, as shown in the following command:
# vxsnap [-g diskgroup] syncwait snapvol
See Controlling instant snapshot synchronization on page 124.
Attaching plexes of an instant snapshot
Although this operation is named reattach, the plexes of an ISP snapshot volume
could never have belonged to the parent volume. For this reason, the description
of reattaching snapshot volume refers to the attachment, rather than the
reattachment, of snapshot plexes.
This operation is not supported for space-optimized instant snapshots.
See Reattaching a linked break-off snapshot volume on page 119.
Using the following command, some or all plexes of an instant snapshot may be
attached to the specified source volume, or to a source volume in the snapshot
hierarchy above the snapshot volume:
Administering instant snapshots
Creating instant snapshots
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