Not real sure about that Ken. It's always humming along because I have Squeezcenter installed on it as an app and it's always ready to go whenever I hit the play button. You can set up the drives however you like. I just installed a 1T drive on it and set it up to back up the other two 500 gig drives.

For more info on the server, I go here http://www.mediasmartserver.net/forums/index.php