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From: ambrisko@kpc.com (Douglas Ambrisko)
Newsgroups: comp.os.386bsd.questions
Subject: Re: FreeBSD and Adaptec 1542CF SCSI
Date: 28 Nov 1994 18:16:42 GMT
Organization: Kubota Graphics Corporation; Santa Clara, CA, USA
Lines: 40
Message-ID: <AMBRISKO.94Nov28101642@tasha>
References: <3b2u2e$27u@scoob.xap.com> <Roy-2711942134250001@adept.cts.com>
NNTP-Posting-Host: 144.52.28.40
In-reply-to: Roy@AdeptSolutions.com's message of Mon, 28 Nov 1994 05:34:25 GMT
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
> real simple solution.
>
> 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?)
>
> ...repeated again and again forever. It boots fine and if left alone will
> have this condition again after a couple hours.
Nathan:
This isn't really regarding FreeBSD, although I have a Dell 486 running
NeXT Step, but IT has an Adaptec 1542c card. I get the same message(s) if
the SCSI chain is too long. I think that the spec's say something like 6-9
feet, but the adaptec card likes < 4. That's really not too much,
considering most SCSI <-> SCSI cables are 3 feet.
My advice is to get those 18" cables and keep your SCSI connections AS
SHORT AS POSSIBLE.
That has *ALWAYS* solved the AHA timeouts for me.
-Roy
Also make sure your SCSI is terminated. I had trouble with an external
tape that worked fine when I terminated it. However, I also have a real
old card that had troubles with an external drive until I replaced it with
a faster drive.
--
In Real Life: Doug Ambrisko o o / \o/
e-mail: ambrisko@kpc.com //\ //\ / //
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