AUXTR

The AUXTR parameter specifies whether the auxiliary trace destination is to be activated at system initialization.

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

For details of internal tracing in main storage, see the INTTR parameter in topic INTTR.