*BSD News Article 35795


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Newsgroups: comp.os.386bsd.questions
Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!agate!howland.reston.ans.net!noc.near.net!ray.com!news.ray.com!rayssd!galaxia!dave
From: dave@galaxia.network23.com (David H. Brierley)
Subject: SCSI controller recomendations requested
Organization: Galaxia Computer Systems
Message-ID: <Cw3nuw.E8@galaxia.network23.com>
Date: Wed, 14 Sep 1994 03:18:32 GMT
Lines: 34

I am looking to put a new SCSI controller in my machine and I wanted
to get some opinions first.  The machine is a 486DX/40, ISA/VLB
bus, 16 MB and I am running FreeBSD 1.1.5.1 on it.  The reason I
am looking to put a new SCSI board in it is that my existing board
was borrowed from the tech lab at work and they want it back.  I
think I have narrowed the search to the following three boards:

	Adaptec 1542CF (ISA)
	Bus Logic BT545S (ISA)
	Bus Logic BT445S (VLB)

Does anybody have any opinions about these cards, either good or
bad?  Are there any other cards I should consider?  I know that
support for some new cards has been added in the last couple of
releases but I wasn't sure that the cards (ST-01, TMC-950) had as
much functionality as the cards listed above.  The controller has
to be able to support a 1.6 GB disk, a tape drive, and two floppies.
I am also concerned about the speed of the card, I don't want the
SCSI controller to become the bottle neck.

One thing that I am really confused about is the issue of ISA vs
VLB for the SCSI controller.  A friend (who has been using PCs for
a long time) told me to avoid VLB for the disk controller but
obviously some people are using VLB because otherwise why would
FreeBSD include support for it?  Should I use the VLB version?
I.e. would it be faster?  I have a VLB video card already installed.
The only other cards in the machine are a serial card and a
serial/parallel card.

Any help you can provide would be greatly appreciated.  If you reply
directly to me I will post a summary of the responses.
-- 
David H. Brierley                            Work: dhb@ssd.ray.com
3B1 Hacker Extraordinaire                    Home: dave@galaxia.network23.com