Minimum options (MINOPS) are defined for GRS=RING and GRS=NONE so that exceptional events will be traced at all times, regardless of the options specified. CTRACE will permit the trace state to be ON (with both the specified and minimum options in effect) or MIN (only the minimum options in effect). The trace will never be OFF. When viewing the trace data using the IPCS CTRACE subcommand, filtering options will be provided to limit the scope of the data displayed.