TRACE command for DFM

The trace facility can be activated by the operator TRACE command, or you can use the SYS1.PARMLIB member CTncccxx to specify trace options for the TRACE CT command and to turn off tracing.

CTncccxx must exist at IPL for tracing to be available on the system. The default is CTISMS00. For more information on using CTncccxx to specify tracing options, see "CTncccxx" in z/OS MVS Initialization and Tuning Reference.

The syntax of the TRACE command for tracing the PDSE component is:

Command	Keywords
TRACE	,WTRSTART=membername [WRAP\|NOWRAP ] ] ]
	CT [,WTRSTOP=jobname ] ]
	[CT [,ON ] { {COMP=SYSSMS } [,SUB=(sub[sub],...)]
	[,PARM=CTISMSxx] } ]
	[CT [,nnnK ] { } ]
	[CT [,nnnnM] { } ]
	[CT [,OFF] { } ]

The default SYSSMS trace table size is 72 KB.

PARM=CTISMSxx identifies the SYS1.PARMLIB member that contains the tracing options.

The nnnK and nnnnM keywords can be used to specify trace table sizes of 16–999 KB or 1–2047 MB, respectively.

You are then prompted to specify trace options. You must respond with the REPLY command, using the following syntax:

Command	Keywords
REPLY	id
	[,JOBNAME=(jobnamelist)]
	ASID[,=(asidlist.)]
	[,OPTIONS=(namename...)]
	[,WTR=procname\|DISCONNECT]
	[,END]

Note:

The id value is the identification number, 0–99, specified on the prompting message.
You can list up to 16 jobs or ASIDs to be used as filters in tracing.
The REPLY can be continued on multiple lines. END must be the final parameter, to identify the end of the REPLY.

The TRACE and REPLY commands are fully described in z/OS MVS System Commands.