However, when there are thousands of users, administration becomes a very large task. To make this task more manageable, the concept of groups was developed. A group is a RACF entity with which any number of users are associated. Usually, the users in a group have some logical relationship to one another. The relationship used most frequently is members of a department.
Many installations pattern their group-user structure after their organization charts.
At the top of the RACF group-user structure is a group called SYS1. When you install RACF, it defines this group for you. The SYS1 group is the highest group in the total RACF group-user structure. You can define your system administrator and system auditor as members of this group. All rights reserved.