Defining dump data sets

This section describes how to define the following two types of dump data sets that CICS® uses for recording dumps as a consequence of a failure detected during CICS execution, or upon explicit request:

  1. CICS transaction dump data sets, for recording transaction dumps.
  2. MVS™ system dump data sets, for recording system dumps that CICS requests using the MVS SDUMP macro.

CICS has a dump table facility that enables you to control dumps. The dump table lets you:

You can set the options you want in the dump table in two ways:

  1. Using the CEMT master terminal command
  2. Using the EXEC API commands

When you start CICS for the first time, CICS uses system default values for the dump table options, and continues to use the system default values until you modify them with a CEMT or EXEC CICS command. For information about the dump table options you can set, see the CICS Problem Determination Guide.

Note:
The MVS system dump data sets can become full with unwanted SDUMPs that precede ASRA, ASRB, and ASRD abends (after message DFHAP0001 or DFHSR0001). To prevent this from happening, you can suppress all SDUMPs preceding ASRA, ASRB and ASRD abends, or you can suppress some of them. Suppressing system dumps that precede ASRx abends tells you how to do this.
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