[comp.sys.amiga.hardware] Amiga 1000 + Apple 80SC hard drive?

portuesi@tweezers.esd.sgi.com (Michael Portuesi) (02/01/90)

>>>>> On 1 Feb 90 17:14:15 GMT, devin@boulder.Colorado.EDU (Devin Hooker) said:
devin> 	Basically I have an Amiga 1000 and I can borrow an Apple 80SC
devin> hard drive from work.  I was wondering if there is an inexpensive SCSI
devin> interface for the amiga that would support this drive.  Thanks.
devin> 		-Devin


Basically any one of the slap-on-the-side SCSI interfaces for the
A1000 should do the job.  I have a Microbotics StarboardII with the
Stardrive option.  The arrangement has a Macintosh-style SCSI
connector and is advertised to work with SCSI drives for the
Macintosh.  I have it connected to a Seagate SCSI drive, and it works
fine.

Supra also makes a SCSI interface, but I don't know much about it.  I
wouldn't buy anything from CLtd unless I knew they were still in
business.

			--M
-- 
__  Michael Portuesi	Silicon Graphics Computer Systems
\/  portuesi@sgi.com	Entry Systems Division -- Engineering

    "Why you?  Because you're Electro-Cop, the best there is."

devin@boulder.Colorado.EDU (Devin Hooker) (02/02/90)

	Basically I have an Amiga 1000 and I can borrow an Apple 80SC
hard drive from work.  I was wondering if there is an inexpensive SCSI
interface for the amiga that would support this drive.  Thanks.
		-Devin

doug@xdos.UUCP (Doug Merritt) (02/03/90)

In article <PORTUESI.90Feb1131037@tweezers.esd.sgi.com> portuesi@sgi.com (Michael Portuesi) writes:
>Supra also makes a SCSI interface, but I don't know much about it.  I

I have a Supra on my A1000, and it works fine. The formatting software
is very flexible; from what I've seen (my own Wren III that was not in
the predefined list) & heard you can talk to any SCSI drive, not just
some predefined ones.

It's not DMA, but I was just looking for something that people thought
had a good chance of working with my old Pacific Cypress 2 Meg expansion,
and the Supra got the most votes. Sure enough, the two work fine together.
I don't even have PAL grounding mods.

I'm a little unclear as to whether any of the still-extant A1000 SCSI
interfaces support DMA anyway, but if they do, it seems clear that DMA
gives better performance than non-DMA, Supra claims notwithstanding.
On the other hand I've heard that DMA controllers can conflict with e.g.
audio DMA. Perhaps that's just a question of correctly prioritizing
tasks?
	Doug
-- 
Doug Merritt		{pyramid,apple}!xdos!doug
Member, Crusaders for a Better Tomorrow		Professional Wildeyed Visionary