Cleaning up the IMS directory data sets

In an IMS-managed ACBs environment, the Catalog Directory Recovery utility (DFS3RU00) can also be used to clean up the IMS directory data sets when the directory online updates aborted abnormally.

Procedure

  1. Ensure that no DDL definition activation process or the IMPORT DEFN SOURCE(CATALOG) command is in progress of updating the directory data sets. You can use one of the following options:
    • Enable internal resource lock manage (IRLM) in the JCL and in the IMS system to avoid process conflicts. This method is recommended.
    • If IRLM is not used, issue the QUERY MEMBER TYPE(IMS) SHOW() command to check the status of the IMPORT and DDL definition activation processing.
  2. Run the IMS Catalog Directory Recovery utility.