Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

333Administering volume snapshots
Creating instant snapshots
The -x option expands the output to include the component volumes of volume
sets.
See the vxsnap(1M) manual page for more information about using the vxsnap print
and
vxsnap list commands.
Controlling instant snapshot synchronization
Note: Synchronization of the contents of a snapshot with its original volume is not
possible for space-optimized instant snapshots.
The commands in this section cannot be used to control the synchronization of linked
break-off snapshots.
By default, synchronization is enabled for the
vxsnap reattach, refresh and restore
operations on instant snapshots. Otherwise, synchronization is disabled unless you specify
the
syncing=yes attribute to the vxsnap command.
The following table shows the commands that are provided for controlling the
synchronization manually.
The vxsnap snapwait command is provided to wait for the link between new linked
break-off snapshots to become ACTIVE, or for reattached snapshot plexes to reach the
SNAPDONE state following resynchronization. See “Creating and managing linked
Command Description
vxsnap [-g diskgroup] syncpause vol|vol_set Pause synchronization of a volume.
vxsnap [-g diskgroup] syncresume \
vol|vol_set
Resume synchronization of a volume.
vxsnap [-b] [-g diskgroup] syncstart \
vol|vol_set
Start synchronization of a volume. The
-b option puts the operation in the
background.
vxsnap [-g diskgroup] syncstop vol|vol_set Stop synchronization of a volume.
vxsnap [-g diskgroup] syncwait vol|vol_set Exit when synchronization of a volume
is complete. An error is returned if vol
is invalid (for example, it is a space-
optimized snapshot), or if vol is not
being synchronized.
Note: You cannot use this command to
wait for synchronization of reattached
plexes to complete.