Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Admin operations on an unmounted VxFS thin volume
A thin volume is a volume composed of one or more thin LUNs. If a thin volume
is not mounted on a VxFS file system, any resynchronization, synchronization,
or refresh operation on the volume, plex, or subdisk performs a full
synchronization and allocates storage on the unused space of the volume. Only
a mounted VxFS file system can use SmartMove to assist with optimized
administrative operations on thin volumes.
By default, commands that mirror, take snapshots, or attach a plex may fail with
an error message.
Some commands use the -f option and others use the -o force option to force
the command. The command manual page contains details of the force option to
be used.
Note: The full new plex or volume allocates physical storage on thin LUNs and
will not be a thin/optimized operation.
Stopping a volume
Stopping a volume renders it unavailable to the user, and changes the volume
kernel state from ENABLED or DETACHED to DISABLED. If the volume cannot
be disabled, it remains in its current state. To stop a volume, use the following
command:
# vxvol [-g diskgroup] [-f] stop volume ...
To stop all volumes in a specified disk group, use the following command:
# vxvol [-g diskgroup] [-f] stopall
Warning: If you use the -f option to forcibly disable a volume that is currently
open to an application, the volume remains open, but its contents are inaccessible.
I/O operations on the volume fail, and this may cause data loss. You cannot deport
a disk group until all its volumes are closed.
If you need to prevent a closed volume from being opened, use the vxvol maint
command, as described in the following section.
349Administering volumes
Admin operations on an unmounted VxFS thin volume