DFS2718I ERRORS IN MSDB CHKPT DATA SET, NO SYSTEM/MSDB CHKPT TAKEN

Explanation

Program DBFDBDP0 found errors in one of the main storage database (MSDB) checkpoint data sets, and no MSDB checkpoint is taken.

System action

No further checkpoint (system and MSDB) is taken except for a shutdown checkpoint, if requested. No MSDB checkpoint are taken as part of the shutdown checkpoint.

Operator response

If a write error occurs in one of the MSDB checkpoint data sets in the initial checkpoint after the IMS restart, and the restart checkpoint is written to the OLDS, the MSDBs cannot be recovered in an emergency restart. If this problem occurs during restart, take action B. Otherwise, you can take either of these actions:

A. Recovery through an emergency restart action:
  1. Force termination of IMS by issuing a MODIFY IMS,STOP command.
  2. Scratch the failing MSDB checkpoint data set, and reallocate a new data set.
  3. Copy the valid MSDB checkpoint data set to the newly allocated data set.
  4. Emergency restart the system from the last valid system checkpoint.
B. Recovery through a warm start action:
  1. Shut down IMS. Message DFS2762A should be expected.
  2. Follow the actions documented in message DFS2762A.