Under CICS, the Server Option trace facility stores header and data trace information in a VSAM ESDS file. As installed, this file is named SYTDLOG1.
The Server Option appends TDS trace records to the log until it becomes full. When the log is full, all subsequent attempts to write to that log are rejected. To make room for new records, do one of the following:
Archive or delete trace records,
Change the name of the trace/error log, or
Change the underlying VSAM file assigned to this name.
The CICS auxiliary datasets record API activity in CICS. Depending on how the trace facility is set up, the dataset either fills up and fails to record further information, or it wraps, overlaying information. To retrieve the auxiliary trace output, you can dump the file using a CICS utility or a third-party vendor package designed for this purpose. Refer to CICS documentation for details about the auxiliary trace facility.
