DFS2761W ERROR IN MSDB CHKPT - NO IMS CHKPT TAKEN - SHUT DOWN SYSTEM

Explanation

Program DBFDBDP0 found an error in a main storage database (MSDB) checkpoint data set and no MSDB checkpoint was taken. The system must be shut down to recover.

System action

No system or MSDB checkpoint is taken, except for any shutdown checkpoint that you requested. An MSDB checkpoint is not taken as part of the shutdown checkpoint.

Operator response

(master terminal) If a write error occurs in an MSDB checkpoint data set during the initial checkpoint after the IMS restart, and the restart checkpoint is written to the OLDS, perform a warm start recovery. Otherwise, perform either a warm start recovery or an emergency restart recovery.

Warm start recovery:
  1. Shut down IMS.
  2. Message DFS2762A is issued. Follow the actions documented in message DFS2762A.
Emergency restart recovery:
  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.