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From: Tappan@bbng.arpa (Dan Tappan)
Newsgroups: net.micro
Subject: SCSI hard disk interfaces
Message-ID: <1300@brl-smoke.ARPA>
Date: Tue, 25-Feb-86 22:10:40 EST
Article-I.D.: brl-smok.1300
Posted: Tue Feb 25 22:10:40 1986
Date-Received: Sun, 2-Mar-86 19:46:47 EST
Sender: news@brl-smoke.ARPA
Lines: 26

I'm looking for some practical information on SCSI hard disk controllers.
Basicly I'm looking for a controller I can use to connect an ST506
drive to a Macintosh, using either the Mac+ SCSI port or one of the
MacSCSI varients (I haven't decided which way I'm going to go in upgrading
my Mac). Looking through the adds in the back of BYTE I find the
following controllers mentioned:

	Xebec S1410A - I assume this is the most likely to be standard.
	It's also the most expensive.
	OMTI 20L
	Shugart 1610-1 "Similar to DTC 510"
	Shugart 1610-3 "Similar to Xebec S1410"
	Shugart 1610-4 "Similar to Adaptec 4000"
	Also mentioned are Western Digital, Adaptec, and "DG" controllers. I 
	don't know the model numbers.

Is there anyone out there who is familiar with the SCSI spec and any
of these controllers and can tell me how likely they are to work?
I'm particularly interested in electrical compatability since I
assume that I can hack up a driver if necessary if the controller 
only varies in command codes. Things like "that controller assumes
it's the only one on the bus" would also be interesting.

Thanks for any info,
Dan Tappan
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