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Date:      Mon, 1 Aug 2005 13:42:41 +0200 (CEST)
From:      =?ISO-8859-1?Q?Erik_N=C3=B8rgaard?= <norgaard@math.ku.dk>
To:        Francisco <francisco@natserv.net>
Cc:        Norbert Koch <NKoch@demig.de>, questions@freebsd.org
Subject:   RE: Dead disk? READ_DMA Failure
Message-ID:  <Pine.LNX.4.40.0508011341230.11718-100000@shannon.math.ku.dk>
In-Reply-To: <20050731104901.M6839@zoraida.natserv.net>

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On Sun, 31 Jul 2005, Francisco wrote:

> On Fri, 29 Jul 2005, Norbert Koch wrote:
>
> >> I have a one year old Hitachi Travelstar 60GB/4200RPM disk. This
> >> night and since then, I get these errors:
> >> ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=48926527
> >> ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=48926527
> >> ad0: FAILURE - READ_DMA timed out
>
> > I've seen these error messages too. And also WRITE_DMA TIMEOUT!
> > You may have a hardware problem, but I'm not convinced.
>
> I don't recall if it was the exact errors, but I had some simmilar ones.
> For some reason 5.4 didn't like my ATA100 drive and had to slow down the
> communication speed to the drive.
>
> In my case I added to /usr/local/etc/rc.d a script with
>
> /sbin/atacontrol mode 1 udma66 pio4
>
> Basically slowing down the channel to the drive.. the pio4 is for the
> CDrom and that was it's normal speed.

Thanks! Well, I wish that I had known that before I tried
reinstalling the system.

Thanks again, Erik

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