The preferred method for
performing system disk backup and restore operations is to boot the
operating system media, choose the DCL option from menu, and then
enter the appropriate backup commands. The detailed procedures are
described in Section F.4 and Section F.5.
However, if you do not have access to the CD or
if you want to back up a shadowed system disk without disabling the
shadow set, you can use a different procedure, which is described
in Section F.6.