Whenever you get a hard drive that refuses to format, try a different formatter. If FWB Toolkit fails, try Anubis. If that fails, try something else on a Mac. If the Mac fails, try formatting the disk in a PC (you can often do it from DOS or firmware on the SCSI card) before trying the same cycle on a Mac.

Often, SCSI drives that have been used in NetWare, NT or Unix servers refuse to play with a Mac. With perseverence, if the drive works, you will find a solution.