Check which terminal is the master before you take it out of redundancy. This terminal is storing the dated subdirectories for the last 21 days. Do a file server recovery and the terminals should come back and float.
Browse to the master terminal and copy the dated subs to the aloha directory on the server. Each copied day should grind when copied to the server and if you get grind errors leave them until the copy process is over then close them later.
You now have 21 more days, take your server to your Aloha dealer and tell them you need it fixed ASAP.
Taking it to a computer geek will probably cost more in the long run (again, depending on your problem) to get someone to set it up right for runnung as an Aloha server.
cheers,