VERITAS Volume Manager 3.5 Troubleshooting Guide (August 2002)

Chapter 1, Recovery from Hardware Failure

Recovering from Incomplete Disk Group Moves

If the system crashes or a subsystem fails while a disk group move, split or join operation

is being performed, VxVM attempts either to reverse or to complete the operation when

the system is restarted or the subsystem is repaired. Whether the operation is reversed or

completed depends on how far it had progressed.

Automatic recovery depends on being able to import both the source and target disk

groups. If this is not possible (for example, if one of the disk groups has been imported on

another host), perform the following steps to recover the disk group:

1. Usethe vxprint command toexamine theconﬁguration of bothdisk groups.Objects

in disk groups whose move is incomplete have their TUTIL0 ﬁelds set to MOVE.

2. Enter the following command to attempt completion of the move:

# vxdg recover sourcedg

This operation fails if one of the disk groups cannot be imported because it has been

imported on another host or because it does not exist:

vxvm: vxdg: ERROR: diskgroup: Disk group does not exist

If the recovery fails, perform one of the following steps as appropriate.

❖ If the disk group has been imported on another host, export it from that host, and

import it on the current host. If all the required objects already exist in either the

source or target disk group, use the following command to reset the MOVE ﬂags in

that disk group:

# vxdg -o clean recover diskgroup1

Use the following command on the other disk group to remove the objects that have

TUTIL0 ﬁelds marked as MOVE:

# vxdg -o remove recover diskgroup2

❖ If only onedisk groupis available tobe imported, use thefollowing command to reset

the MOVE ﬂags on this disk group:

# vxdg -o clean recover diskgroup