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

262 Administering volumes
Starting a volume
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
Running the vxvol start command on the volume then revives the plex as described in
the next section.
Starting a volume
Starting a volume makes it available for use, and changes the volume state from
DISABLED or DETACHED to ENABLED. To start a DISABLED or DETACHED
volume, use the following command:
# vxvol [-g diskgroup] start volume ...
If a volume cannot be enabled, it remains in its current state.
To start all DISABLED or DETACHED volumes in a disk group, enter:
# vxvol -g diskgroup startall
Alternatively, to start a DISABLED volume, use the following command:
# vxrecover -g diskgroup -s volume ...
To start all DISABLED volumes, enter:
# vxrecover -s
To prevent any recovery operations from being performed on the volumes, additionally
specify the
-n option to vxrecover.