CICS system dump codes

Whenever a CICS system dump is requested, CICS references a system dump code that corresponds to the event that caused the dump request to be made. This is done in order to see what further action should be taken. More information about this can be found in the CICS® Problem Determination Guide.

In most cases, system dump codes correspond to a DFH message with the DFH tag stripped off. For example, system dump code DM0001 corresponds to message DFHDM0001 with the DFH tag removed. For further information, look up the relevant message where appropriate.

However, there are some exceptions to this format, as shown in the following list.

System dump code
Corresponding message or exception condition
ABNDU603
This system dump code refers to a USER abend code and is associated with message DFHSR0603.
ABNDU605
This system dump code refers to a USER abend code and is associated with message DFHSR0605.
APTRAPPC
This system dump code is associated with message DFHTR1001.
APTRAPUS
This system dump code is associated with message DFHTR1000.
APUSER
This system dump code is issued through the use of the CEBT transaction when performing a PERFORM SNAP command.
APXRFTO
This system dump code has no DFH message associated with it. An error in the currently active CICS system has occurred. An alternate CICS system is now taking control and is requesting that the active CICS system produces a dump of itself.
MT0001
This system dump code has no DFH message associated with it. It indicates that a dump was requested by a user of CEMT, issuing either a PERFORM SNAP or a PERFORM DUMP.
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