Date: Mon, 5 Sep 2005 18:56:19 +0000 (GMT) From: Michael Abbott <michael@araneidae.co.uk> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Hard disk woes Message-ID: <20050905172827.U17621@saturn.araneidae.co.uk> In-Reply-To: <20050905171912.GF67960@sentinelchicken.net> References: <20050905151332.P16924@saturn.araneidae.co.uk> <20050905171912.GF67960@sentinelchicken.net>
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On Mon, 5 Sep 2005, Jason Morgan wrote: > On Mon, Sep 05, 2005 at 03:16:13PM +0000, Michael Abbott wrote: >> I'm having some very odd behaviour from one of my hard disks and I wonder >> what anybody makes of it. >> >> In brief, the hard disk in questions works just fine much of the time, but >> when high volume data transfers are requested I get the following in >> /var/log/messages: >> >> Sep 3 15:21:02 saturn /kernel: ad6: READ command timeout tag=0 serv=0 - >> resetting > I had a very similar problem a while back. After replacing the drive in > question, then replacing the motherboard, I discovered it was a power > issue. The power supply was freaking out at medium to high loads, which > was causing the device to continually reset. Well, I hope that's not it. I'm encouraged to think not: - the problem seems to be tied to one particular hard disk and I presently run with four hard disks - the system has operated trouble free for three years - my memory is that it was a good quality power supply. I don't really see how I'd diagnose a power supply problem, but as I say, the hard disk in question is the only part with problems.
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