IBM MQ for z/OS dumps

Use this topic for information about the use of dumps in problem determination. It describes the steps you should take when looking at a dump produced by an IBM MQ for z/OS® address space.


How to use dumps for problem determination

When solving problems with your IBM MQ for z/OS system, we can use dumps in two ways:

  • To examine the way IBM MQ processes a request from an application program.

    To do this, you typically need to analyze the whole dump, including control blocks and the internal trace.

  • To identify problems with IBM MQ for z/OS itself, under the direction of IBM support center personnel.
Use the instructions in the following topics to get and process a dump:

The dump title might provide sufficient information in the abend and reason codes to resolve the problem. We can see the dump title in the console log, or by using the z/OS command DISPLAY DUMP,TITLE. The format of the dump title is explained in Analyzing the dump and interpreting dump titles on z/OS. For information about the IBM MQ for z/OS abend codes, see IBM MQ for z/OS abends, and abend reason codes are documented in IBM MQ for z/OS messages, completion, and reason codes.

If there is not enough information about your problem in the dump title, format the dump to display the other information contained in it.

See the following topics for information about different types of dumps: