Veritas Volume Manager 5.0.1 Troubleshooting Guide, HP-UX 11i v3, First Edition, November 2009

Recovering an unstartable mirrored volume

A system crash or an I/O error can corrupt one or more plexes of a mirrored

volume and leave no plex CLEAN or ACTIVE. You can mark one of the plexes CLEAN

and instruct the system to use that plex as the source for reviving the others.

To recover an unstartable mirrored volume

Place the desired plex in the CLEAN state using the following command:

# vxmend [-g diskgroup] fix clean plex

For example, to place the plex vol01-02 in the CLEAN state:

# vxmend -g mydg fix clean vol01-02

To recover the other plexes in a volume from the CLEAN plex, the volume must

be disabled, and the other plexes must be STALE. If necessary, make any other

CLEAN or ACTIVE plexes STALE by running the following command on each of

these plexes in turn:

# vxmend [-g diskgroup] fix stale plex

Following severe hardware failure of several disks or other related subsystems

underlying all the mirrored plexes of a volume, it may be impossible to recover

the volume using vxmend. In this case, remove the volume, recreate it on

hardware that is functioning correctly, and restore the contents of the volume

from a backup or from a snapshot image.

See the vxmend(1M) manual page.

To enable the CLEAN plex and to recover the STALE plexes from it, use the

following command:

# vxvol [-g diskgroup] start volume

For example, to recover volume vol01:

# vxvol -g mydg start vol01

See the vxvol(1M) manual page.

Recovering from hardware failure

Recovering an unstartable mirrored volume