Prepare for a specific component trace to trace buffers

1. Select How the Operator Is to Request the Trace: For most component traces, the request is made by:

• A TRACE CT operator command without a PARM parameter, followed by a reply containing the options
• A TRACE CT operator command with a PARM parameter that specifies a CTncccxx parmlib member containing the options

2. Create a parmlib member, if used: If you use a parmlib member, create the member and place it on SYS1.PARMLIB. Use a parmlib member if the options are complicated and you have access to the SYS1.PARMLIB data set, or if a parmlib member is required by the component, or if you had already set up a parmlib member with the needed options. Use a REPLY for simple options. See Create CTncccxx parmlib members for some components. For XCF, for example, you can create CTWXCF03 to specify the options.

TRACEOPTS
   ON
   OPTIONS('SERIAL','STATUS')

3. Determine the dump to be used to obtain the trace records: Table 1 shows how to request SVC dumps for the component traces. Possible ways of requesting SVC dumps are:

• By a DUMP operator command
• By a SLIP trap
• By the component

For the following failures, use another type of dump:

• Failure of an application program or program product: The program requests a SYSMDUMP dump.
• The system waits, hangs, or enters a loop: The operator requests a stand-alone dump.