Log data from the IMS Monitor

Due to how your IMS Monitor log data set is stored, you should process the log after you stop the IMS Monitor and before restarting it again.

If the IMS Monitor log data set is on tape, IMS issues a tape mount request each time you start the IMS Monitor, and IMS rewinds the tape each time you stop the IMS Monitor. If the IMS Monitor log data set is on DASD, IMS uses the same data set each time you start the IMS Monitor.

Recommendation: Start the IMS Monitor and allow it to run for a period of time, and then stop it to write a snapshot of current activity on the IMS Monitor log. You must stop the IMS Monitor before you take a shutdown checkpoint in order for the report program to produce usable output.