HP (Hewlett-Packard) HP-UX 11i v3 Landscape Lighting User Manual


 
344 Administering volume snapshots
Creating instant snapshots
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 break-off snapshot volumes” on page 331, “Reattaching an
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.