Andrew: " This is correct, but server0 must stay up for everything to work. You may still be able to access files without server0, but it may be slower
and it is not guaranteed. Are both server0 and server1 running the 'vlserver' and 'ptserver' processes? " The OpenAFS's process in the server0: bosserver; fileserver; volserver; ptserver; vlserver. The server1 has the same process running. So, I need to configure the server1 to work without the server0, because I will need to turn it off.