You should work with your security administrator to create a security policy that supports system-managed data sets, and controls access to SMS control data sets, programs, and functions. RACF® lets you define users and groups of users, their various attributes, and their rights and privileges to access data and use system facilities. RACF can also provide default data, storage, and management classes associated with a data set owner to your ACS routines to help you determine the storage resources and management services required by the data set.