APPC Subsystem on MPE/XL Node Manager's Guide (30294-90007)

Chapter 2 41
Interactive Control Operator Commands
APPCCONTROL START
command. To start a new trace file without bringing
down the APPC subsystem, turn tracing off and back
on again with the APPCCONTROL TRACEOFF and
APPCCONTROL TRACEON commands.
record count
A decimal number, from 0 through 32767, specifying
the trace file size, in 128-word records. Once the record
count has been reached, trace records are overwritten
starting at the beginning of the file.
Default: 4096.
performance option
Enables or disables the gathering of APPC subsystem
performance statistics. These statistics are displayed
when you issue the APPCCONTROL PERFORMANCE
command.
YES APPC subsystem performance
statistics are gathered during run time.
NO APPC subsystem performance
statistics are not gathered.
Once the APPC subsystem is active, statistics
gathering can be enabled and disabled during run time
with the APPCCONTROL PERFORMANCEON and
APPCCONTROL PERFORMANCEOFF commands, described
earlier in this chapter.
Default: NO
error option
This parameter specifies the action taken when an
irrecoverable subsystem internal error occurs. Possible
values are as follows:
SYS If ERROPT=SYS is specified, the system
will be brought down when an
irrecoverable internal error within the
APPC subsystem occurs, and a full
system dump will be taken.
SUB If ERROPT=SUB is specified, only the
APPC subsystem will be brought down
when an irrecoverable internal error
occurs within the APPC subsystem.