I have a Winodws 2000 SP4 server with a 1TB external USB drive attached for storage.
If I restart the server, it will hang on startup (BIOS). If I remove the drive and reset the machine, it will startup ok. I can then re-attach the drive and Windows recognizes it, everything is fine.
My concern is, if there is a power loss and the UPS runs out, when power returns the server will hang on startup.
This machine is not an actual "server" box it is a pc with plenty of RAM etc to run as a server.