Prevent new users from attempting to access the database by taking steps such as bringing the system to the single-user state or removing execute access to GT.M components for an appropriate class or users. Also, terminate or suspend all processes accessing the database in question, using the UNIX ps -af utility to find such processes. Because the DSE command CRITICAL -INITIALIZE -RESET generates errors for all processes accessing a database file, it provides a quick way to stop such processes.