Technical data

Using BACKUP
11.16 Restoring User Disks
• If the save set is on magnetic tape, load the tape and enter the following
command, substituting the name of the tape drive you use for MIA0:
$ BACKUP/LIST/REWIND MIA0:
Listing of save set(s)
Save set: 19APRIL2000.SAV
Written by: SYSTEM
UIC: [000001,000004]
Date: 19-APR-2000 22:03:03.63
.
.
.
The save set is named 19APRIL2000.SAV.
4. Enter the BACKUP command using the following syntax:
BACKUP/IMAGE device:save-set-specifier[/SAVE_SET] output-specifier
The /IMAGE qualifier indicates that you are restoring an image backup.
If your backup copy is on a disk or diskette, then you must also use the
/SAVE_SET qualifier immediately after the save-set specifier (device:save-set-
specifier).
5. If your backup copy is on more than one tape or diskette, load each
subsequent tape or diskette when BACKUP prompts for the next volume.
6. Use the /NOUNLOAD qualifier to dismount the disk onto which you have just
restored the files from the image backup.
7. Mount the disk that you are restoring as a file-structured volume, using the
following syntax:
MOUNT device-name: volume-label
The parameter device-name is the name of the drive that holds the volume
you want to mount. The parameter volume-label is the 1- to 6-character
alphanumeric identification you assigned to the volume with the INITIALIZE
command.
8. Dismount the media that contained the image backup and mount the tape,
disk, or diskette that contains the most recent incremental backup of the disk.
9. Restore your incremental save sets, beginning with the most recent backup.
Use the following syntax to restore an incremental backup:
BACKUP/INCREMENTAL save-set-specifier[/SAVE_SET] device-specifier
Remember that you must use the /SAVE_SET qualifier after the save-set
specifier if your backup copies are on a disk or diskette.
Continue restoring the incremental backups, from the most recent to the
oldest, until you have processed all of the incremental backups since the most
recent image backup. If the incremental backups are on more than one tape,
diskette, or disk, then you must load each one successively when prompted by
BACKUP.
When you have processed the oldest incremental backup, the restore
operation is complete.
11–48 Using BACKUP