HP BACKCOPY User Manual

Guidelines
• Use -P or -M when you only know the primary or mirror half of the volume pair is valid.
• The disk volume you specify to be backed up must be on the current node (system); that is,
you cannot do a remote volume-mode backup.
• If you attempt a volume-mode backup from a disk with a capacity greater than 2 GB, you will
be unable to restore it to an operating system version prior to D30, and this message is
generated:
The source disk has a capacity of more than 2 GB, which
cannot be restored to a pre-D30 system.
• For more information, see Backing Up in Volume Mode (page 80) and Example (page 80).
WHOLEDISC
Use the WHOLEDISC option to specify backup of an entire DP2 disk image, including an intact
free space table (FST). This option applies only to volume-mode backups for DP2 disks.
WHOLEDISC
Guidelines
• The WHOLEDISC option instructs the BACKUP utility to copy the disk image and the FST
exactly as they exist on the disk (compression is not done). Without specifying the WHOLEDISC
option, the BACKUP utility compresses the FST to optimize disk space when the tape is restored.
• If file-system error 58 (disk free space table is marked bad) appears when you try to access
a file, the FST is probably corrupt. If the FST is corrupt, use the WHOLEDISC option to back
up the entire disk with the FST intact. Restore the tape to a nonproduction system and use the
SCF CONTROL DISK, REBUILDDFS command to repair the corrupt FST.
Completion Information
The BACKUP utility returns a completion code to the process that started it. The completion code
indicates if the BACKUP procedure ran successfully. Its primary purpose is to support batch
processing by allowing conditional execution of subsequent processes based on the success of the
BACKUP procedure.
If TACL started the BACKUP procedure, the completion code is stored in a TACL variable
(:_COMPLETION), where you can examine it using TACL functions. TACL also displays the
completion codes at the home terminal unless the BACKUP procedure completes normally without
any warnings or errors. For more information about completion codes and batch processing, see
the TACL Programming Guide.
In addition to a completion code, BACKUP also returns a subsystem identifier
(TANDEM.74.version), where version is the release version (for example, D46). The subsystem
identifier is also stored in the TACL variable (:_COMPLETION).
The completion codes returned by BACKUP and the operating system are described in Table 9.
Table 9 BACKUP Completion Codes
DescriptionCode
A normal voluntary termination. The process completed normally with no errors or warnings.0
A normal, voluntary termination with warnings. All the files were copied, but warnings occurred on one
or more files. (Warnings that are not file specific do not result in this code.)
1
Completion Information 71

HP BACKCOPY Specifications

General

Brand	HP
Model	BACKCOPY
Category	Software
Language	English