Remove an Active Directory or LDAP Group

When an Active Directory or Lightweight Directory Access Protocol (LDAP) group is removed from a domain, only the users from that group lose access to the array. Users from other groups in the domain continue to have access.
NOTE: After a group is removed from the array, users can continue to log in to the group and perform actions for approximately five minutes. After five minutes, the user can no longer access the group.
  1. Go to Administration → Security → Users and Groups.
  2. Select a group from the Users and Groups list.
  3. Choose More Actions → Remove.
  4. Click Remove in the Remove Group warning box.