3 BACKUP
The BACKUP utility copies files from disk to magnetic tape. The RESTORE utility, described in
Chapter 7: RESTORE
performs the complementary function of copying files from magnetic tape
back to disk.
CAUTION:
The syntax for Backup and Restore 2.0 is different from the syntax for the Backup
and Restore utilities (T9074). If you enter the syntax incorrectly for each file type at the BRCOM
prompt, BRCOM might not be able to determine if the command needs to be forwarded to the
Backup and Restore utilities (T9074).
You must use the syntax documented in this manual for Enscribe and SQL/MP files. For OSS and
SQL/MX files, you must use the syntax documented in the Backup and Restore 2.0 Manual.
NOTE:
BRCOM does not support the same tape format as the Backup and Restore utilities (T9074).
You cannot mix Enscribe and SQL/MP files on the same tape with OSS and SQL/MX files.
You can use BACKUP to:
•
Store files on tape for recovery purposes if they are ever lost or damaged on the disk
•
Free disk space by archiving files that are used infrequently
•
Use labeled tapes
•
Move files from one system to another
•
Convert files from one type of disk process to another (from DP1 to DP2)
NOTE:
Updated operating system software uses the DP2 standard and does not always support
the DP1 standard. A conversion might be a one-time maintenance operation (or an infrequent
necessity) when an old backup tape is restored.
Page
Topic
(page 39)
Security
(page 40)
BACKUP and RESTORE Interaction
(page 40)
BACKUP Syntax
(page 46)
File-Mode BACKUP Options
(page 47)
Volume-Mode BACKUP Options
(page 47)
BACKUP Options
(page 71)
Completion Information
(page 72)
BACKUP Guidelines and Examples
Security
BACKUP is a privileged program. Each customer determines the users who are allowed to run it.
You can control access to BACKUP in several ways, including:
•
Do not license the program file for general use. Only the super ID (255, 255) can run the
program without licensing. If BACKUP is not licensed, SQL tables cannot be backed up by
anyone (including the super ID).
•
License the program file and limit access to a subset of users by either setting file security
attributes or using a Safeguard access-control list.
Security
39