Data integrity

Before a recovery can be performed, all database data sets in the recovery list must be brought offline. This can be done by either issuing the DBRECOVERY command, or specifying DBRCMD option on the START command.

The database data sets that are being recovered are not made available for processing by other IMS subsystems or batch jobs until the successful completion of recovery is recorded in the RECON by DBRC. It is essential that all jobs accessing database data sets and areas that are being recovered use DBRC to control access to the data sets during recovery.

If you run a time stamp recovery to any prior point in time (PITR option), the database data sets and areas are not made available for processing by other IMS subsystems or batch jobs until they are successfully image copied and the image copies are registered with DBRC.

Note: If you use time stamp forward recovery, it is strongly recommended that all related database data sets and areas be recovered to the same point in time. This recommendation includes database data sets and areas, secondary indexes, and logically related databases. Failure to comply with this recommendation can result in databases that contain inconsistent data.