Chapter 1. Introduction to the new mainframe 25
While system programmer expertise lies mainly in the mainframe hardware and
software areas, system administrators are more likely to have experience with
the applications. They often interface directly with the application programmers
and end users to make sure that the administrative aspects of the applications
are met. These roles are not necessarily unique to the mainframe environment,
but they are key to its smooth operation nonetheless.
In larger IT organizations, the system administrator maintains the system
software environment for business purposes, including the day-to-day
maintenance of systems to keep them running smoothly. For example, the
database administrator must ensure the integ ...