Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Stopping a Volume
230 VERITAS Volume Manager Administrator’s Guide
This command causes VxVM to attempt to reverse the progress of the operation so far. For
an example of how to use vxtask to monitor and modify the progress of the Online
Relayout feature, see “Controlling the Progress of a Relayout” on page 259.
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
Caution 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. It is not possible to
deport a disk group until all of its volumes are closed.
If you need to prevent a closed volume from being opened, it is recommended that you
use the vxvol maint command, as described in the following section.
Putting a Volume in Maintenance Mode
If all mirrors of a volume become STALE, you can place the volume in maintenance mode.
Then you can view the plexes while the volume is DETACHED and determine which plex
to use for reviving the others. To place a volume in maintenance mode, use the following
command:
# vxvol [-g diskgroup] maint volume
To assist in choosing the revival source plex, use vxprint to list the stopped volume and
its plexes.
To take a plex (in this example, vol01-02 in the disk group, mydg) offline, use the
following command:
# vxmend -g mydg off vol01-02
The vxmend on command can change the state of an OFFLINE plex of a DISABLED
volume to STALE. For example, to put a plex named vol01-02 in the STALE state, use
the following command:
# vxmend -g mydg on vol01-02