IBM MQ 8.0 was EOS 30th April 2020.Click EOS notice for more details
Using the z/OS DUMP command
To resolve a problem, IBM® can ask you to create a dump file of the queue manager address space, channel initiator address space, or coupling facilities structures. Use this topic to understand the commands to create these dump files.
You might be asked to create dump file for any or several of the following items for IBM to resolve the problem:
Main IBM MQ address space
Channel initiator address space
Coupling facility application structure
Coupling facility administration structure for your queue-sharing group
Figure 1 through to Figure 5 show examples of the z/OS® commands to do this, assuming a subsystem name of CSQ1.