Date: Fri, 30 Mar 2007 14:44:33 +0100 From: Alex Zbyslaw <xfb52@dial.pipex.com> To: Christian Walther <cptsalek@gmail.com> Cc: FreeBSD Users Questions <freebsd-questions@freebsd.org> Subject: Re: ad0: TIMEOUT - Is my disk dying? Message-ID: <460D1441.60904@dial.pipex.com> In-Reply-To: <14989d6e0703300200j670a46f3s6369d8132b76ba62@mail.gmail.com> References: <14989d6e0703291420y1ed229dej7e2808a859f6efa6@mail.gmail.com> <B43905CF-7FE8-4A6F-8805-B15DE2C2EAB3@rottnic.nl> <D6B5375CBC761B4BAD78E414B4BB55729101BC@mercury.rac.com.au> <14989d6e0703300200j670a46f3s6369d8132b76ba62@mail.gmail.com>
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Christian Walther wrote: >> >> > > I'm seeing a lot of the following messages lately: >> > > >> > > Mar 29 21:02:01 pixie kernel: ad0: TIMEOUT - READ_DMA retrying (1 >> > > retry left) LBA=13554983 >> > > Mar 29 21:02:34 pixie kernel: ad0: TIMEOUT - READ_DMA retrying (1 >> > > retry left) LBA=35376691 >> Just thought I should point out that you can get errors like this if your disk drive *cable* is faulty or has wiggled loose. I spent hours testing a 250Gb drive with manufacturer tools only to solve the problem by replacing the SATA cable. I suspect the cable was fine and had just wiggled loose. SATA may be thinner, but they're still a bugger to route because they pull out so easily. Even an IDE cable could have gone faulty or wiggled out; but in 15 years that's never happened to me whereas I've seen 2 SATA cables wiggle out in an untouched tower case in two years. --Alex
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