Special considerations for using RCU
Some conditions preclude running RCU and must be corrected before using the function. Other conditions require special consideration after RCU completes. In any case, RCU will either deliver an error message or report this information.
- Interim log records:
- Interim log records are temporary, they are created during the use of the IMS Log Recovery utility, and they remain in the RECON only while the utility
is running.
Therefore, interim log records with a start time earlier than the Clean Up time must be removed either by running the Log Recovery utility or by using the DBRC DELETE.LOG command.
RCU terminates with an error message if any of these interim log records exist.
- OLR:
- The IMS Online Reorganization utility (OLR) might have been
in a suspended or active state. If OLR is running at the same time as the cleanup time, a report
will be generated for those databases that were being reorganized.
Manual intervention is required to determine the state of the active or inactive data sets before any recovery of these databases occurs.
RCU will report this information.
- RECOV records that do not have a subsequent IC record:
- RCU will detect if a RECOV record exists without a subsequent image copy.
RCU will report this information.
- REORG records that do not have a subsequent IC record:
- RCU will detect if a REORG record exists without a subsequent image copy.
RCU will report this information.
- Databases that do not have any image copy records:
- RCU will detect if a DBDS record does not have at least one associated IC record. Image copies
are required for recovery.
RCU will report this information.
- Primary and secondary image copy records:
- If you specify that RCU is to mark the primary image copies in error and no corresponding
secondary image copy record exists.
RCU will report this information.
- Primary and secondary log records:
- If you specify that RCU is to mark the primary log records in error and no corresponding
secondary log record exists.
RCU will report this information.