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

54 Chapter2
Interactive Control Operator Commands
APPCCONTROL TRACEON
APPCCONTROL TRACEON
Enables internal state tracing for the APPC subsystem.
Syntax
APPCCONTROL TRACEON
[;TFILENAME= trace file name ]
[;TFILESIZE= record coun t]
Parameters
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 TRACEON command was
issued.
The default trace file name is NMTC
xxxx .PUB.SYS,
where
xxxx is a number from 0000 through 9999. This
number is incremented whenever a new trace file is
created.
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.
Description
The APPCCONTROL TRACEON command enables internal state tracing. It
can be issued during run time, after the APPC subsystem has been
activated. Internal state tracing records significant state changes,
events and data to a disk file. The default name of the disk file is
NMTC
xxxx .PUB.SYS, where xxxx is a number from 0000 through 9999.
This number is incremented whenever a new trace file is opened.
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.