Veritas Volume Manager 5.0 Troubleshooting Guide, HP-UX 11i v3, First Edition, May 2008

49Backing up and restoring disk group configurations

Restoring a disk group configuration

Here diskgroup is the name of the disk group, and dgid is the disk group ID. If a

disk group is to be recreated on another system, copy these files to that system.

Caution: Take care that you do not overwrite any files on the target system that

are used by a disk group on that system.

To back up a disk group manually, use this command:

# /etc/vx/bin/vxconfigbackup

diskgroup

To back up all disk groups, use this version of the command:

# /etc/vx/bin/vxconfigbackup

For more information, see the vxconfigbackup(1M) manual page.

Restoring a disk group configuration

You can use the vxconfigrestore utility to restore or recreate a disk group from

its configuration backup. The restoration process has two stages: precommit and

commit. In the precommit stage, you can examine the configuration of the disk

group that would be restored from the backup. The actual disk group

configuration is not permanently restored until you choose to commit the

changes.

Note: None of the disks or VxVM objects in the disk group may be open or in use

by any application while the restoration is being performed.

You can choose whether or not any corrupted disk headers are to be reinstalled

at this stage. If any of the disks’ private region headers are invalid, restoration

may not be possible without reinstalling the headers for the affected disks.

The following command performs a precommit analysis of the state of the disk

group configuration, and reinstalls the disk headers where these have become

corrupted:

# /etc/vx/bin/vxconfigrestore -p [-l