Dumping the message queues
You use the /CHECKPOINT SNAPQ command to save the message queues in a nonshared-queues environment. This command dumps the message queues to the log without terminating the online system.
Recommendation: Schedule
the /CHECKPOINT SNAPQ regularly because it shortens
the time required for emergency restart if a problem occurs on the
message queue data sets. Consider the following intervals:
- Whenever the OLDS is switched
- Once each hour
- Once each shift
- Twice each day (midnight and noon)
- Once each day
For a shared-queues environment, use the /CQCHKPT SHAREDQ command to dump the shared queues.