*BSD News Article 88805


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From: kanefsky@datamagic.com (Steve Kanefsky)
Newsgroups: comp.periphs.scsi,comp.unix.bsd.freebsd.misc
Subject: Re: Bizarre SCSI problem (3 disks work, 4 don't) (2940UW/Quantum Atlas II)
Date: 9 Feb 1997 18:52:55 GMT
Organization: DataMagic
Lines: 19
Message-ID: <5dl6e7$m6u@aldehyde.netone.com>
References: <5d7201$qa@gosset.maths.tcd.ie> <32FA2004.53F@proaxis.com> <32FC823F.292@erinet.com>
NNTP-Posting-Host: fireball.datamagic.com
Xref: euryale.cc.adfa.oz.au comp.periphs.scsi:70156 comp.unix.bsd.freebsd.misc:35270

In article <32FC823F.292@erinet.com>,
Eric Ratermann  <ericrat@erinet.com> wrote:

>Man I'm glad to hear I'm not alone on this one, I had the same problem
>with 4 4.5 gig FW Quantums (don't remember model) in a Ibm Server 320
>with the 2940 UW.  A $60.00 forced perfect terminator and a lot of
>dinking (that's a very high tech term for using Fuck I don't know try
>anything) made it work. Besides, after spending $18,000 dollars on a
>server I figured sixty to ease my termination worries didn't matter.

I'd even go so far as to say it'd be worth a few hundred extra dollars for
another SCSI controller.  That would not only make the setup more reliable
but it should improve performance as well.  Four of almost any modern SCSI
drive exceeds the available bandwidth on a F/W SCSI bus.  If you had any
other SCSI devices (CD-ROM, tape drive, etc.), I'd even go for a third
SCSI bus for those on such an expensive server.

--
Steve Kanefsky