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From: hyc@math.lsa.umich.edu (Howard Chu)
Newsgroups: comp.sys.atari.st
Subject: Re: SCSI controler...
Message-ID: <11434@stag.math.lsa.umich.edu>
Date: 17 Mar 90 06:25:17 GMT
References: <3790@plains.UUCP> <1990Mar16.224434.10948@chinet.chi.il.us>
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Reply-To: hyc@math.lsa.umich.edu (Howard Chu)
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In article <1990Mar16.224434.10948@chinet.chi.il.us> saj@chinet.chi.il.us (Stephen Jacobs) writes:
%I'll say what I've gathered.  The only SCSI controller for any personal
%computer that handles the Seagate 296N at 1:1 interleave is the BMS-200.
%That's the most finicky drive around, as far as timing of commands and
%responses is concerned.  There are lots of nice things about the BMS-200.
%
%ICD makes a line of products incorporating their own host adapter, and which
%work best with the controller software that ICD writes.  Their host adapter
%allows the longest cable run between it and the hard drive.
%
%So the BMS card is a better reduction to practice of the 'ideal' SCSI concept,
%while the ICD card is the cornerstone of a system of available accessories.
%You get what you need more, I guess.
%                                Steve J.

Just an offhand question - do either of these cards allow the DMA system
to continue to function if the attached SCSI bus is powered off? My old
Supra card did, but my current one (smoked the old one - oops!) doesn't.
(So if the hard drive is plugged in but turned off, the floppy drive is
no longer usable.)

Does the ICD card support enough of the SCSI command set to plug in
exabyte tape drives or SCSI ethernet boards?

--
  -- Howard Chu @ University of Michigan