Backup and Restore 2 Manual

BRCOM BACKUP Command

Backup and Restore 2 Manual—522696-019

6-7

BACKUP Command Processing

When you issue a BRCOM BACKUP command:

1. If you specify a job ID, BRCOM checks if that job ID exists in the BRJOBS file or if

any files exist in $workvolume.jobid. If the job ID already exists or if there are

files in the $workvolume.jobid subvolume, the job aborts with error 2023.

2. If you do not specify a job ID, BRCOM automatically generates a job ID.

3. BRCOM places a copy of the command in the $workvolume.jobid.BRCMD file:



If you specify an IN file, the BRCMD file contains the contents of the IN file and

the backup command that you specified.



If you do not specify an IN file, the BRCMD file contains only the BACKUP

command you specified.

4. BRCOM:

a. Starts the DMA using any run options that you specified.

b. Writes the job record to the BRJOBS file. For more information about the

BRJOBS files, see Backup and Restore Jobs (BRJOBS) File on page 1-3

c. Sends a request to the DMA to start the backup job.

5. The DMA validates the backup request, including file security validation.

6. The Data Service enumerates the backup request.

7. If you specified a DEFINE, the DEFINE sends a request to $ZSVR (the

labeled-tape server process) for labeled-tape processing.

8. After validation, the DMA instructs the Tape Service to write the files to tape. In

case of a parallel backup operation, Tape Service writes the files to both the tapes.

9. The individual object information is recorded in the BRIC file. For more information

about the BRIC file, see Backup and Restore Intermediate Catalog (BRIC) File on

page 1-4

If you specify an object that does not exist, the object is skipped, and the

information for the object is not recorded in the BRIC.

10. If you specified the LISTALL job option, a list of the objects backed up and

bypassed is recorded in the listing file.

11. If you specified a TAPECATALOG define with CATALOG ON, the tape information

is recorded in the DSM/TC volume catalog.

Note. The parallel backup feature is supported only on systems running H06.05 or later

H-series RVUs.