We need a way of locking all users (except for 3 special ones) in our SAP system, before we start SAP. For example. When we perform a disaster recovery, we do not want ANY users to logon on to the system until we have checked the system out. We cannot use SU10 as users can logon between the time SAP is started and SU10 is run. I would think there is some SQL we could run on the "USR" tables to perform the tasks.
Has anyone done anything similar?