5190/5194 Modular Tape Subsystem Manual

Operating the Cartridge Tape Drive and ACL
5190/5194 Modular Tape Subsystem Manual—426878-002
4-39
Backups Requiring Multiple Cartridge Tapes
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The VERIFYTAPE options instructs BACKUP to examine the tape for data integrity
after each file is written to tape.
Using Labeled Tape
If you are using labeled tapes, you must use a tape DEFINE in BACKUP and
RESTORE commands. A tape DEFINE specifies information about a tape file, such as
the label type, tape density, and expiration date of the data on the tape. The following
example specifies a CLASS TAPECATALOG DEFINE named “=BACK.” The BACKUP
command copies all the files on the $DATA volume to the tape =BACK.
1> ADD DEFINE =BACK, CLASS TAPECATALOG, LABELS BACKUP,&
1> &USE OUT, CATALOG OFF
2> BACKUP =BACK, $DATA.*.*, LISTALL, NOPROMPT
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The LISTALL option lists the names of all files copied to tape.
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The NOPROMPT option instructs BACKUP not to prompt the user before
beginning to write on each tape, but to begin when it detects the tape drive is
ready.
For more information about labeled-tape processing, see Using Labeled and Unlabeled
Tapes on NonStop Himalaya K-Series Servers on page 4-42. For more information on
tape DEFINEs, see the following manuals:
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Guardian User’s Guide
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Guardian Disk and Tape Utilities Reference Manual
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DSM/Tape Catalog User’s Guide
Backups Requiring Multiple Cartridge Tapes
For backups that require more than one cartridge tape, the ACL starts with the
cartridge you load in the drive to begin the backup process. (See Loading the
Cartridge Magazine on page 4-15.) If the BACKUP command includes the
NOPROMPT option, the ACL loads additional tapes sequentially without prompting the
operator.
For example, if you load the cartridge from slot 1 into the drive and issue a BACKUP
command that requires three cartridges, the ACL uses the cartridges in slots 1, 2, and
3. The drive unloads the third cartridge when BACKUP is finished and then loads the
next cartridge.
Cartridges cannot be loaded in random slot order unless you load them manually using
the buttons on the ACL front panel.
Sequential loading does not progress beyond the cartridge in slot 7. If a BACKUP
operation requires additional cartridges, you must remove the cartridges already
written, insert another magazine full of cartridges, and load a new cartridge.