CTF Trace is the primary logging mechanism for the COBOL system. It logs what happens in most user programs and what is happening within the internal CAS processes themselves. For example, JCL and the compiler/ debugger.
It records activity over a period of time, and is enabled via a separate configuration file. CTF tracing can be restricted to specific components or modules, and certain elements within these components. The level of detail included in the trace can be configured for each component if required.
For complete information on the Consolidated Trace Facility, see The Consolidated Tracing Facility.
To view a video on the Micro Focus YouTube channel on how to enable CTF tracing for Enterprise Server using the Legacy Enterprise Server Administration User Interface, here. While the UI is different than ESCWA, the concepts are the same.