Tracing on z/OS

There are different trace options that can be used for problem determination with IBM® MQ. Use this topic to understand the different options and how to control trace.

About this task

The trace facilities available with IBM MQ for z/OS® are:

The channel initiator trace
The CICS® adapter trace
The generalized trace facility (GTF) trace.
If trace data is not produced, check the following:
- Was the GTF started correctly, specifying event identifiers (EIDs) 5E9, 5EA, and 5EE on the USRP option?
- Was the START TRACE(GLOBAL) command entered correctly, and were the relevant classes specified?
See Using the GTF with IBM MQ global trace for more information.
The IBM internal trace used by the support center
The line trace
System TLS (formerly SSL) trace
The user parameter (or API) trace
z/OS traces

For more information, see Other types of trace on z/OS.

See the sub topics listed in Collecting troubleshooting information on z/OS for more information on what you need to send to IBM Support when you have a specific problem that requires resolving.

Use the following links to find out how to collect and interpret the data produced by the user parameter trace, and describes how to produce the IBM internal trace for use by IBM Support. There is also information about the other trace facilities that you can use with IBM MQ.