I doubt if it has changed.  From this doc:
https://www.ibm.com/support/knowledgecenter/en/SSGSG7_7.1.1/com.ibm.itsm.tshoot.doc/t_pdg_enblclitraceoncli.html

Choose the location of the trace messages output by adding the following
text to the client options file: tracefile <file name>.
The tracefile name must be fully qualified, for example:

   - [image: Windows operating systems]tracefile c:\service\trace.out
   - [image: AIX operating systems][image: HP-UX operating systems][image:
   Linux operating systems][image: Oracle Solaris operating systems]tracefile
   /home/spike/trace.out
   - [image: Mac OS X operating systems]tracefile trace.txt


On Wed, Aug 23, 2017 at 9:00 AM, Lee, Gary <glee AT bsu DOT edu> wrote:

> Can someone point me toward the syntax for the tracefile option?
>
> Linux Client 7.1.6.4,  used as a data mover. For tsm for VE.
> Directed by ibm support to turn on tracing, but tracefile appears to be an
> error in the dsm.sys file.
>



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