The preferred method for performing
system disk backup and restore operations is to boot the operating system
CD-ROM, choose the DCL option from menu, and then enter the appropriate
backup commands. The detailed procedures are described in
Backing Up the System Disk and
Restoring the System Disk. However, if you do not have access to the compact disc or
if you want to back up a shadowed system disk without disabling
the shadow set, you can use a different procedure, described in
Alternate Backup and Restore Procedure.
Store the backup media in a safe place.
If you have an OpenVMS Cluster environment with
more than one system disk, be sure the volume label on each system
disk and backup copies of system disks are unique. Use the SET VOLUME/LABEL command
to change a volume label, if necessary.
HP OpenVMS Alpha Version 7.3-2 Upgrade and Installation... 
Backing Up and Restoring the System Disk
