CA Dynam for VSE User Guide

DYNCAT Commands
A File Created By
BACKUP
May Be Used for Performing
RESTORE (to physically restore)
RESTORE REORG (to logically reorganize and restore)
BACKUP RECOVER
RESTORE REORG only, because it does not contain a
reliable index
A tape created using BACKUP and restored using RESTORE may be used by
the audit facility to recover the Catalog. For more information, see the chapter
"Maintaining and Reporting on the Audit Trail."
BACKUP Processing
When a BACKUP is performed, the CA Dynam Catalog is enqueued as soon as
the backup file has been opened, and is not dequeued until the BACKUP is
completed.
If the backup file is a controlled dataset, the most current version will not be a
part of the data dumped to the backup file because the file has not yet been
closed. You need to define the backup dataset with CATOPEN=YES so that the
current version will be backed up (because it will be marked as active at open
time).
Resolving Processing Errors
If errors are encountered during the BACKUP, messages will be issued
describing the nature of the error. Review the printed output from the BACKUP
daily to assure that the Catalog is intact. In the event an error has been noted,
run the BACKUP RECOVER function to assure that no datasets are lost due to
directory errors; then, run the RESTORE REORG function to rebuild the
Catalog, correcting the error. The BACKUP function uses file name 'IJSYSBK'
for the BACKUP file. The logical unit used is SYS006.
Perform a BACKUP at least once each day; immediately prior to the SCRATCH
function. It must be performed when all other partitions are idle or, at least,
not running any jobs that use files controlled by the CA Dynam Catalog.
If you suspect any error or problem with the Catalog, you should BACKUP the
Catalog first, before attempting any other recovery. In most cases, running a
BACKUP, RESTORE REORG, and SCRATCH will correct any errors that may
occur. If it is necessary to run BACKUP RECOVER, the file containing the
original BACKUP file that produced the error should be retained for analysis.
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