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

Backing up and restoring

disk group configurations

This chapter includes the following topics:

■ About disk group configuration backup

■ Backing up a disk group configuration

■ Restoring a disk group configuration

About disk group configuration backup

Disk group configuration backup and restoration allows you to backup and restore

all configuration data for Veritas Volume Manager (VxVM) disk groups, and for

VxVM objects such as volumes that are configured within the disk groups. Using

this feature, you can recover from corruption of a disk group’s configuration that

is stored as metadata in the private region of a VM disk. After the disk group

configuration has been restored, and the volume enabled, the user data in the

public region is available again without the need to restore this from backup

media.

Warning: The backup and restore utilities act only on VxVM configuration data.

They do not back up or restore any user or application data that is contained

within volumes or other VxVM objects. If you use vxdiskunsetup and vxdisksetup

on a disk, and specify attributes that differ from those in the configuration backup,

this may corrupt the public region and any data that it contains.

The vxconfigbackupd daemon monitors changes to the VxVM configuration and

automatically records any configuration changes that occur. Two utilities,

Chapter