CICS® VR AIX® processing
varies according to the type of backup that the VSAM sphere was restored from.
See the appropriate backup type below for a complete description.
- DFSMShsm logical
backups
- DFSMShsm logical
backups can be made for the entire VSAM sphere; base cluster, AIXs, paths.
Therefore, if through the CICS VR panel interface you select a DFSMShsm backup,
the entire VSAM sphere is restored. During CICS VR forward recovery, any restored AIX that
is part of the upgrade set is updated appropriately without any additional
processing.
If a new sphere name was entered for restore
and recovery through the CICS VR panel interface, only the base cluster is restored
by DFSMShsm.
Any AIXs must therefore be recreated and rebuilt manually after successful
recovery processing.
- Backups restored outside of CICS VR or no backups restored
- If a backup is not selected for restore through the CICS VR panel
interface, no additional AIX processing is performed by CICS VR. However, any AIXs in the upgrade
set defined for the VSAM sphere that is being forward recovered is updated
appropriately during forward recovery processing.
- DFSMSdss logical
copies or dumps
- CICS VR
can be notified of logical copies or dumps created for VSAM spheres. However,
only the base cluster can be copied or dumped when CICS VR is notified because the CICSVRBACKUP
and SPHERE keywords of the COPY and DUMP commands are mutually exclusive.
Therefore, when a DFSMSdss logical copy or dump is selected through
the CICS VR
panel interface, only the base cluster is restored. Any AIXs must be manually
recreated and rebuilt after forward recovery processing.
- Backups registered through the file copy notification service
-
If a backup that was previously registered to CICS VR through the file copy notification
service is selected for restore, a restore skeleton for the product identifier
associated with the backup must be defined to CICS VR. The restore skeleton must run
the appropriate program with the required commands and keywords to restore
the selected backup type. The ability to restore the entire VSAM sphere;
base cluster, AIXs, paths, depends on the restore program.
- Offline and sharp online backups
- CICS VR
does not perform any additional AIX processing for the following types of
backups registered through the file copy notification interface:
- Backups that were taken while the data set remained offline and closed
to CICS for
update.
- Backups that were taken while the data set remained online and open to CICS for
update, but no updates were made to the data set during backup processing,
sharp online backup.
Any AIXs in the upgrade set for the VSAM sphere that is being forward
recovered is updated appropriately during forward recovery processing.
- Fuzzy online backups
- For all backups that were registered to CICS VR with a fuzzy online status, indicating
that the backup was taken while the data set remained online and open for
update, and one or more updates were made to the data set during backup processing, CICS VR
performs the additional AIX processing:
- CICS VR
removes all AIXs that are reusable and part of the upgrade set prior to forward
recovery processing.
- The AIXs are rebuilt after successful completion of forward recovery processing.
Note: CICS VR
does not rebuild AIXs when a new name has been specified for the restoration
and forward recovery of a VSAM sphere.