INTTR

The INTTR system initialization parameter specifies whether the internal CICS trace destination is to be activated at system initialization.

INTTR={ON|OFF}
This parameter controls whether any of the three types of CICS trace entry are written to the internal trace table. The three types are: CICS system trace (see the SYSTR parameter), user trace (see the USERTR parameter), and exception trace entries (which are always made and not controlled by a system initialization parameter).
ON
Activate main storage trace.
OFF
Do not activate main storage trace.