Modules in the MVS link pack area from hlq.SDFHAUTH

CICS® uses standard MVS load facilities for modules installed in the MVS link pack area from the CICS APF-authorized library, hlq.SDFHAUTH.

That is, such a module is used from the first of the following locations where it is found:
  1. STEPLIB concatenation
  2. MVS link pack area
  3. MVS LNKLST

To use any of the CICS modules installed in the MVS link pack area from the hlq.SDFHAUTH library, you must remove any version of the module from the hlq.SDFHAUTH library or any other library in the STEPLIB concatenation.

You can prevent CICS using modules installed in the MVS link pack area from the hlq.SDFHAUTH library by installing versions of those modules in a library in the STEPLIB concatenation.

CICS then uses the versions of the modules from the STEPLIB concatenation into the CICS address space, rather than any versions that might be in the MVS link pack area.