Mac OS X Server depends more on an orderly shutdown of the operating system than Mac OS 8 does. If the computer is turned off or restarted abruptly, there will probably be damage to the file system. If this happens, it is necessary to run the fsck command to check for and repair any file system damage.

Because Mac OS X Server is a server operating system, it should stay running all of the time.

1. Normal Shutdown - Choose Quit from the File menu in the Workspace Manager. The following dialog box appears: "Do you really want to log out." You are given a chance to save any changes to unsaved documents.
2. Normal Power off - Press the Power key on the keyboard. The following dialog box appears: "Do you really want to turn off the computer." Clicking the "Turn It Off" button shuts down the computer properly. You should be given a chance to save and changes to unsaved documents.
3. Command Line - If you are logged on as Administrator, or as a user that is a member of group wheel, open Terminal.app from /System/Administration or from the Apple menu. If you are not logged in as the Administrator, type su root. When prompted, type the Administrator password. Type halt or reboot. The computer should shut down or restart properly.
4. Mini Monitor - Type Control-Power. You should get a small dialog box that says "Restart or Shutdown" Type R to restart, or type H to shutdown. Type C to continue. Warning . You may lose unsaved data. Nonetheless, Mac OS X Server should still properly shut itself down.
5. Command-Control Power - Likely to cause file system damage. May be the last resort in some circumstances. You must start the computer up in single-user mode and run fsck.