There are two distinct aspects to problem determination:
Commands and panel data must be free from errors before they are accepted for processing. Any errors found by the validation are immediately notified to the user by error messages.
Problem diagnosis begins with the interpretation of these error messages and taking the recommended corrective action.
Problems found during normal operation of the channels are notified to the system console or the system log. Problem diagnosis begins with the collection of all relevant information from the log, and continues with analysis to identify the problem.
Confirmation and error messages are returned to the terminal that initiated the commands, when possible.
WebSphere MQ produces accounting and statistical data, which you can use to identify trends in utilization and performance. On z/OS, this information is produced in the form of SMF records, see WebSphere MQ for z/OS System Setup Guide for details. The equivalent information on other platforms is produced as PCF records, see Monitoring WebSphere MQ for details.
Where provided, the Messages and Codes manual of the particular platform can help with the primary diagnosis of the problem.
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