When diagnosing failures in ISMF, the following options may make problem diagnosis easier:

1. Run with WTP message turned on in your TSO/E profile. This gives you the message identifier and an online symptom dump for error messages issued by components other than ISMF. z/OS TSO/E Command Referencez/OS TSO/E Command Referencez/OS TSO/E Command Reference explains how to set up your TSO/E profile.
2. Allocate a SYSUDUMP, SYSABEND, or SYSMDUMP so the system will provide a full dump if an abend occurs. For information about allocating a dump data set, see z/OS MVS JCL User's Guide and z/OS MVS JCL Reference.
3. Run with the ISPF log turned on.
4. Look at the abend recovery and logging options in the ISMF profile to determine the options that best suit your needs.

Determining how ISMF processes abends and generates dumps discusses ISMF abend recovery options and how to make the best use of the ISPF logging facility.