MNRES

The MNRES system initialization parameter specifies whether transaction resource monitoring is to be made active during CICS initialization.

MNRES={OFF|ON}
The transaction resource monitoring class status is recorded in the CICS global catalog for use during warm and emergency restarts.
OFF
Set transaction resource monitoring to not active.
ON
Set transaction resource monitoring to active.

Transaction resource monitoring applies to CICS file resources when you specify the FILE=nn option on the DFHMCT TYPE=INTIAL macro.