Recovering the IMS catalog from image copies when IMS manages ACBs

When IMS™ manages ACBs, if the SQL data definition language (DDL) is used and you cannot create a backup ACB library, you can recover the IMS™ catalog only from an image copy of the main database data sets combined with the log data sets that are created since that image copy.

You must have an image copy of the main database data sets of the IMS catalog and the log data sets that are created since that image copy.

Procedure

Recover the IMS catalog database by using one of the following PHIDAM recovery procedures that is appropriate to your IMS catalog:
- Recovering a PHIDAM database in a non-data-sharing environment
- Recovering a PHIDAM database in a data sharing environment
Run the IMS Catalog Directory Recovery utility (DFS3RU00) to rebuild the IMS directory data sets. Before you run the DFS3RU00 utility, ensure that the IMS catalog DBDs (DFSCD000, DFSCX000) and PSBs (DFSCP000, DFSCP001) are recovered so that the utility can be rerun in case of recovery failure.

The IMS Catalog Directory Recovery utility does not support main storage databases (MSDB) and shared secondary index databases. The utility requires access to the DFSDFxxx member of the IMS.PROCLIB data set.

Note: If you want to recover the IMS catalog HALDB but keep the current directory data sets, you can run the IMS Catalog Directory Recovery utility to check whether the recovered HALDB matches the existing directory data sets.
Restart IMS