CICS Transient Data Queue Considerations

CA IDMS CSD File Transient Data Queue (TDQUEUE) for IDMSDBUG must be defined and opened for any tracing to appear. The CICSCSD member in CAGJSRC contains the following definition for the TD queue:
DEFINE TDQUEUE(DBUG) GROUP(IDMSGRP) TYPE(EXTRA) DDNAME(DEBUG) BLOCKSIZE(1024) RECORDSIZE(1020) RECORDFORMAT(VARIABLE) BLOCKFORMAT(UNBLOCKED) OPENTIME(DEFERRED) ERROROPTION(IGNORE) TYPEFILE(OUTPUT) DISPOSITION(SHR) DATABUFFERS(1)
 This Transient Data Queue can be opened at CICS startup by specifying OPENTIME(INITIAL) syntax. The Transient Data Queue must be manually opened through CEMT SET TD(DBUG) or EXEC CICS SET TDQUEUE if OPENTIME(DEFERRED) syntax is used in defining the TDQUEUE.