Date: Tue, 25 Aug 1998 19:29:27 -0600 (MDT) From: "Justin T. Gibbs" <gibbs@narnia.plutotech.com> To: David Wolfskill <dhw@whistle.com> Cc: hardware@FreeBSD.ORG Subject: Re: SCSI bus timeouts Message-ID: <199808260129.TAA18461@narnia.plutotech.com> In-Reply-To: <199808251804.LAA23506@pau-amma.whistle.com>
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In article <199808251804.LAA23506@pau-amma.whistle.com> you wrote:
> Any hints or tips welcomed.
1. Check your cables and termination on ahc0. You're getting parity
errors and cables, or termination are the likely cause of these errors.
2. Switch to using CAM. sd1 is returning busy status maybe because it is
doing a thermal recal (who knows). The old SCSI layer doesn't have the
facilities to deal with a busy device gracefully, we end up beating on
the drive hoping it will accept the command and we probably confuse it
to the point of not working.
The CAM patches are available at ftp://ftp.FreeBSD.org/pub/FreeBSD/cam.
See the README file at that location for more details.
> Thanks,
> david
> --
> David Wolfskill UNIX System Administrator
> dhw@whistle.com voice: (650) 577-7158 pager: (650) 371-4621
--
Justin
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