Use the following questions to help establish foundation information concerning your system.

1. What is the operating system version and release level and PTF level (PUT tape)? You can use the DSMON reports to answer this particular question.
2. How many local modifications have been applied (excluding exit routines)?
3. What are the main areas and/or functions modified?
4. Are the systems the same on all processor complexes?
5. What user-written SVC routines does the system include and what is their purpose?
6. What exit routines are in the system and what is their purpose? Could these exit routines affect RACF® protection? Some examples of subsystems or components that can have exit routines are:
   • SMF
   • TSO/E
   • JES
   • Job management