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Activates the APPC subsystem. Any APPC sessions configured
for automatic activation will be established when the subsystem
is activated Syntax |  |
APPCCONTROL START
[;TRACEON=tracing option]
[;TFILENAME=trace file name]
[;TFILESIZE=record count]
[;PERFON=performance option]
[;ERROPT=error option] |
Parameters |  |
- tracing option
Enables or disables APPC subsystem internal state tracing.
Internal tracing records significant state changes, events, and
data to a disk file. - YES
APPC subsystem internal state tracing is enabled. - NO
APPC subsystem internal state tracing is disabled.
If tracing is enabled at subsystem startup, it can be turned
off during run time by issuing the APPCCONTROL TRACEOFF command. If tracing is disabled at subsystem startup,
it can be turned on during run time by issuing the APPCCONTROL TRACEON command. Default: NO - trace file name
An 8-character name consisting of alphanumeric characters
and beginning with a letter. A trace file with this name will be
created in the group and account from which the APPCCONTROL START command was issued. The default trace file name is NMTCxxxx.PUB.SYS, where xxxx is a number from 0000 through 9999. This number is
incremented whenever a new trace file is created. A new trace file is created whenever tracing is enabled, at
subsystem startup with the TRACEON parameter, or during run time with the APPCCONTROL TRACEON 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.
Hewlett-Packard recommends that you specify ERROPT=SUB so that the rest of the system can remain active
when there is a problem with the APPC subsystem. However, if an
APPC subsystem problem cannot be found, your HP representative may
ask you to specify ERROPT=SYS so that a system dump is taken when the internal
error occurs. Default: ERROPT=SUB
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