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From: chilton@MCS.COM (Christopher Hilton)
Newsgroups: comp.os.386bsd.questions
Subject: Re: FreeBSD and Adaptec 1542CF SCSI
Date: 29 Nov 1994 15:35:10 -0600
Organization: /usr/lib/news/organi[sz]ation
Lines: 38
Message-ID: <3bg6qe$5nn@Venus.mcs.com>
References: <3b2u2e$27u@scoob.xap.com> <Roy-2711942134250001@adept.cts.com> <AMBRISKO.94Nov28101642@tasha>
NNTP-Posting-Host: venus.mcs.com
In article <AMBRISKO.94Nov28101642@tasha>,
Douglas Ambrisko <ambrisko@kpc.com> wrote:
>In article <Roy-2711942134250001@adept.cts.com> Roy@AdeptSolutions.com (Roy Lovejoy) writes:
>
> In article <3b2u2e$27u@scoob.xap.com>, nb@xap.com (Nathan Bradshaw) wrote:
>
> > Hi, FreeBSD hackers! We've got a puzzlin' problem here that probably has a
[snip]
> > My roommate installed 2.0 RELEASE yesterday on his new Pentium 90 VLB/PCI
> > 16Mb with an ISA Adaptec 1542cf and a Conner 1.2Gb disk. Overnight it
> > bombed out with an error much like:
> >
> > sd0: aha0: aha154x debug: timeout (again) retrying: (frozen?)
> >
[snip]
The early 1542C cards came with really lame line drivers for the SCSI
logic lines. As a result you have to be really careful with cables and
termination (Which is what the other posters have said). The 1542B
cards on the oher hand have line drivers that were made like old
Schwinn Bicycles (e.g. build to go through a nuclear war and still
work). Clean up your terminatiand cable lengths (3 Meters is the maximum
from end to end) and see if this fixes the problem. Also contact
Adaptec and see if they have any relief on the card.
C.
--
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Christopher Sean Hilton | "Thus it is said if you know them and know
<chilton@mcs.com> | yourself, your victory will not be imperiled.
For PGP key finger: | If you know Heaven and you know Earth, your
chilton@mcs.com | victory will be complete." - Sun Tsu
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