Trace domain (TR)

The trace domain is used by CICS® system code and user application programs to record details of the sequence of events occurring in the system. The basic unit of information created for this purpose is called a trace entry. The trace domain can put trace entries to any combination of three possible destinations:

INTERNAL trace
a wraparound table in main storage in the CICS address space
AUXILIARY trace
a pair of CICS-controlled BSAM data sets used alternately
Generalized trace facility (GTF) trace
the user-defined destination for MVS™ GTF records.
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