Technical data

Using BACKUP
11.16 Restoring User Disks
2. Load and mount the volume. If the backup is contained in a Files–11 save
set, make sure you mount the volume in the Files–11 format. If the backup is
contained in a sequential disk save set, make sure you load the volume and
mount it using the MOUNT/FOREIGN command. If the backup copy is on a
tape save set, load the first tape.
3. If you do not know the name of the save set, perform one of the following
actions:
• If the save set is on a disk, make sure the disk is mounted in the Files–11
format and use the DIRECTORY command to determine the name of the
save set. For example:
$ DIRECTORY BACKUP_DISK:[BACKUPS]
Directory SYS$SYSDEVICE:[BACKUPS]
19APRIL2000.SAV;1
Total of 1 file.
The save set is named 19APRIL2000.SAV.
• If the save set is on magnetic tape, load the tape and then enter the
following command, substituting the name of your tape drive for MIA1:
$ BACKUP/LIST/REWIND MIA1:
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. To restore the save set, enter the BACKUP command with the /IMAGE
qualifier, using the following syntax:
BACKUP/IMAGE device:save-set-specifier [/SAVE_SET] output-device
If your backup save set 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 save set is on more than one tape, disk, or diskette, BACKUP
dismounts and unloads the current volume. Load the next volume when
BACKUP prompts for it.
6. Use the /NOUNLOAD qualifier to dismount the disk onto which you just
restored the files.
Example
The next example shows how to restore an image backup, using the following
assumptions:
• The saved files are contained in a tape save set named FULL_BACKUP.SAV.
This save set is the result of an image backup.
• The tape containing the saved copy of the disk contents is loaded on MIA1.
11–46 Using BACKUP