The disk group configuration information is stored on disk in the VxVM private region. The default size of the private region is 32 megabytes. Stored disk group configuration includes a disk header label, configuration records for VxVM objects (such as volumes, plexes and subdisks), and an intent log for the configuration database. Configuration information must be stored on at least one disk in a VxVM disk group.
The disk group configuration backup and restoration feature allows you to save and restore all configuration data for VxVM disk groups. Configuration information is critical for the disk group. By using the configuration data from a backup, you can:
- Reinstall damaged private region headers of VxVM disks in a disk group.
- Recreate a corrupted disk group configuration.
- Recreate a disk group and the VxVM objects within it.
- Recreate a disk group on another system if the original system is not available.
Backing up disk group configurations
Whenever a configuration is changed, the vxconfigbackupd daemon automatically backs up information about a disk group’s new configuration. You can use the vxconfigbackup utility to manually back up the disk group configuration at any time for one or more disk groups by specifying the disk groups either by name or by identifier (ID). If you do not specify a disk group, all disk group configurations are backed up.
For more information on backing up configurations, see:
vxconfigbackupd(1M) 6.1 manual pages:
vxconfigbackup(1M) 6.1 manual pages:
For information on restoring configuration data, refer to the following Symantec Connect article:
SFHA Solutions 6.0.1: Restoring disk group configuration information using vxconfigrestore
Symantec Storage Foundation and High Availability documentation for other releases can be found on the SORT website.
