If your installation uses security labels, and your installation uses the UADS and broadcast data sets to maintain users, these data sets should be specifically defined to RACF®. For information about security labels and the UADS and broadcast data sets, see Working with the UADS and broadcast data set.

Your installation can maintain TSO/E users using the RACF data base by converting your existing UADS data base to RACF. For more information about converting from a UADS data base to a RACF data base, see Using the RACF data base to maintain TSO/E users.