Before you begin
Make sure you have properly prepared CTRACE controls and resources as described in Steps for preparing CTRACE controls and resourcesWhy and when to perform this task
If you start a WebSphere Application Server for z/OS server before starting the CTRACE writer for WebSphere, the server still gathers data in its trace buffers. This trace data is not available for use unless you follow this procedure, or until a dump of the server address space is taken.Perform the following steps to start CTRACE when a WebSphere Application Server for z/OS server already is active:
Steps for this task