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5.1 Introduction
Use standalone BACKUP to make a complete backup of the system disk.
Standalone BACKUP is a subset of the OpenVMS Backup Utility that
runs without the support of the entire OpenVMS operating system.
You should back up the system disk for the following reasons:
•
In case a problem occurs during a OpenVMS upgrade or update, or
during the installation of other software products. Before you attempt
any of these procedures, you should back up the system disk. If a
problem occurs, you can restore the backup copy of the system disk.
•
To prevent loss of system files if they are accidentally deleted. After
you install or upgrade the OpenVMS operating system, or any other
software products, you should back up the system disk. If a system
file is deleted and renders the system disk inoperable, you can restore
the backup copy and continue to use the system.
•
In case the drive that holds the system disk malfunctions. If you have
a backup copy of the OpenVMS operating system, you can restore it to
a functioning disk and continue to use the system.
•
To eliminate disk fragmentation, which happens when files are stored
noncontiguously on the disk. The BACKUP command creates a copy
on which files are stored contiguously.
System Backup Procedures
5
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