Date: Tue, 07 Aug 2001 01:06:21 +0100 From: ian j hart <ianjhart@ntlworld.com> To: freebsd-stable@FreeBSD.ORG Subject: VIA 82C586 UDMA ICRC errors Message-ID: <3B6F30FD.F9018CC5@ntlworld.com>
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I've had problems with UDMA ICRC errors, particularly when attaching UDMA66 drives to this ATA33 controller. Reducing the cables to the minimum length has (I hope) totally fixed the problem. It's a long story so I'll cut to the chase. One cable turned out to be 20.5" (52cm) and the other was 18" (46cm). The spec is < 18" IIRC. However the drive on the in-spec cable would still fail under heavy load. I moved the drives closer to the connectors and had cables made to fit. Bingo! No more errors. This has also cured an affectation of systat where the drives would show 100% usage at anything but minimal load. I guess I deserve the Homer Simpson Golden Doughnut award for not spotting this sooner. :( Hope this is of help to someone. -- ian j hart PS. This is a different system to the one I posted about as ICT Technician 2nd Aug 2001. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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