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ChadB wrote:
I have seen those types of 'trickle' comm messages during
restricted state for many years on many versions. They
always make me wonder how they get through... <<SNIP>>

The communications activity is done in "system jobs" [SYS jobs] which remain active irrespective of the /restricted state/ status. The ENDSYS & ENDSBS *ALL requests will end all "subsystem [monitor] jobs" [SBS jobs] and all jobs within each subsystem, except the console job in the controlling subsystem.

To prevent communications activity from taking memory and CPU during a system backup [or reclaim, or other /dedicated/ activity, vary off all communication resources\lines [an exception would be what resource the console requires to communicate]. Increasing the history log size and holding all access path rebuilds would be other activity to precede such activities to ensure the best of /dedicated/ operations.

Regards, Chuck

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