FRD4206I UNABLE TO START READING, reason, RC=return code

Explanation

An individual log-data set-read thread of the IMS Database Recovery Facility address space in the IMS Database Recovery Facility was unable to read a log data set. This problem results from an internal IMS error. The message destination is the MVS system console.

In the message text the following values apply:
reason
If reason is OBTAIN DATA SET, the IMS Database Recovery Facility experienced a failure when allocating either a log or change accumulation data set during data set read processing. All of the other reasons that follow indicate an internal IMS error:
  • ENQUEUE ALLOCATE AWE
  • ENQUEUE AWE FOR READER TERMINATION
  • ENQUEUE DEALLOCATE AWE
  • GET AWE FOR DEALLOCATE
  • GET AWE FOR READER TERMINATION
  • POST ECB
  • WAIT FOR ALLOCATE
return code
If reason is OBTAIN DATA SET, return code is DYNALLOC (SVC 99). For additional information on this return code, see the appropriate z/OS® manuals. The message destination is the z/OS system console.

All other values represent internal diagnostic information.

System action

The recovery instance and the IMS Database Recovery Facility address space ended early.

User response

If reason is GET AWE FOR DEALLOCATE or GET AWE FOR READER TERMINATION, increase the region size of your the IMS Database Recovery Facility startup JCL.

All other reasons indicate an internal IMS errors. Record the error information and call the IBM® Software Support for assistance.

Module

FRXRDTH0