DFS4335E ACBMGMT=CATALOG IS SPECIFIED, BUT THE IMS DIRECTORY DOES NOT EXIST.
Explanation
During the startup of an online IMS system or a batch job, the IMS directory was enabled by the specification
of ACBMGMT=CATALOG, but either the IMS directory is not created yet or, in rare
cases, the bootstrap data set for the IMS directory
cannot be found.
System action
IMS startup terminates with abend U0071 or the batch job terminates with abend U0821.
System programmer response
To restart IMS from an ACB library without the IMS directory, change the ACBMGMT specification
in the <CATALOG> section of the DFSDFxxx member
back to ACBMGMT=ACBLIB and restart IMS.
If the error occurred while you are attempting to enable the IMS management of ACBs for the first time, see Enabling IMS management of ACBs.
If error occurred while running with an existing IMS directory, the error is probably caused by a missing or corrupted bootstrap data set. If the bootstrap data set is missing or corrupted, the IMS directory needs to be rebuilt.
You can use either the IMS Catalog Database Library utility (DFS3LU00) to rebuild the IMS directory from the IMS catalog or the IMS Catalog Populate utility (DFS3PU00) to rebuild the IMS directory from ACB library data sets.