I have a 9100FT, which I'm assuming the reference to a 9000 is also to.
What ever that is...(MAC? It is a 68000 based system I believe) In the case of the 9100FT, its OS/9 based.
If anyone has the 9000 unit, the hard drive in them is either a SCSI or a MFM with a SCSI -> MFM interface board. There would be a SCSI port on the rear that you can copy the internal hard-drive to a backup drive (I'm definitely going to do this!)
Mine has a MFM drive, with a SASI-to-MFM interface board. The 9100FT has a SASI mainboard interface. SASI pre-dates SCSI, I know their busses are similar, but I'm not sure if SCSI is a drop in replacement. My drive has failed, and I have no boot floppies for the 9100FT. A post for help on some message board somewhere returned a few responses of people that support the 9100FT and may be able to help me get a working SCSI drive and/or floppies. To UNSUBSCRIBE from techtoolslist, send a message with "UNSUBSCRIBE" in the message body to: techtoolslist-request@flippers.com. Please direct other questions, comments, or problems to jrr@flippers.com.