User-defined tracepoints are activated when you set them with
    the SET TRACE command. Predefined tracepoints are activated by
    default. Use the DEACTIVATE TRACE command to deactivate one or
    more tracepoints.

    If you deactivate a tracepoint, the debugger ignores the
    tracepoint during program execution. To activate a deactivated
    tracepoint, use the ACTIVATE TRACE command. You can activate and
    deactivate user-defined and predefined tracepoints separately.
    Activating and deactivating tracepoints enables you to run and
    rerun your program with or without tracepoints without having to
    cancel and then reset them. By default, the RERUN command saves
    the current state of all tracepoints (activated or deactivated).

    To check if a tracepoint is deactivated, use the SHOW TRACE
    command.

    Related commands:

       CANCEL ALL
       RERUN
       (SET,SHOW) EVENT_FACILITY
       (SET,SHOW,CANCEL,ACTIVATE) TRACE