Before you begin
Before you start CTRACE activity for WebSphere Application Server for z/OS servers, you need to make some decisions about CTRACE controls and resources. You have the option of using default CTRACE values and resources, such as the IBM-supplied CTRACE parmlib member for WebSphere Application Server for z/OS, or you may alter default values and provide your own resources.Why and when to perform this task
Perform the following steps to prepare CTRACE controls and resources:Steps for this task
Note: Tips:
TRACEOPTS WTRSTART(xxxxxx) ON /*CONNECT TO CTRACE EXTERNAL WRITER: */ WTR(xxxxxx)
Parameter | Required or Optional? | Description |
TRACEOPTS | Required and positional | This parameter must be specified first. |
WTRSTART (xxxxxx) | Optional | This parameter automatically starts the CTRACE writer,
using the specified JCL procedure. Alternative: You may use the operator command TRACE CT,WTRSTART=xxxxx to start the CTRACE writer. If you use this parameter in the parmlib member, and later issue the operator command, CTRACE issues an informational message to notify you that the writer already has been started. |
ON | Required | This parameter must be specified before component options. |
WTR (xxxxxx) | Required | This parameter identifies the JCL procedure to be used to start the CTRACE external writer. The specified value must match the value of the WTRSTART parameter to capture the WebSphere Application Server for z/OS trace data into a trace data set. |
Results
After you have made these decisions and completed preparations, you are ready to start CTRACE activities using one of the following procedures: