On Sat, Aug 19, 2017 at 3:53 AM, smf <smf@null.net> wrote: > On 18/08/2017 20:00, Ethan Dicks wrote: >> >> The SASI controller does support two drives. I don't know what ROM >> mods it would take to make that work. I'd love to see how that was >> done. > > I'm not sure rom mods are necessary. The dos board supports unit 0 & unit 1, > which is mapped to the SASI LUN. Ah. I didn't think there was parsing in the DOS ROM code for 0: and 1:. If that's in there, then, yes. two drives is easy. > SASI and SCSI 1.0 are essentially the same Fairly close. The parity line, I think, is the big difference. The commands are basically the same. > you may be able to ditch the > xebec board and the drive. However you'd need something like a SCSI expander > to get two drives to appear as the same ID with different LUN. Right. Bridge boards, like the Xebec or the Adaptec ACB4000 typically did multiple units as LUNs and embedded SCSI does not. Stuff to think about when I pull these out. -ethan Message was sent through the cbm-hackers mailing listReceived on 2017-08-19 18:00:02
Archive generated by hypermail 2.2.0.