Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

# vxsnap -g dbdg make source=dbvol/newvol=fri_bu/\
infrontof=thurs_bu/cache=dbdgcache
See “Cascaded snapshots” on page 359.
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 snapvolume|snapvolume_set \
[source=volume|volume_set] [snapvol2 [source=vol2]...] \
[syncing=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.
Warning: The snapshot that is 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 here:
# vxsnap [-g diskgroup] syncwait snapvol
See “Controlling instant snapshot synchronization” on page 391.
Reattaching an instant snapshot
Note: This operation is not supported for space-optimized instant snapshots.
Using the following command, some or all plexes of an instant snapshot may be
reattached to the specified original volume, or to a source volume in the snapshot
hierarchy above the snapshot volume:
# vxsnap [-g diskgroup] reattach snapvolume|snapvolume_set \
source=volume|volume_set [nmirror=number]
385Administering volume snapshots
Creating instant snapshots