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Date: Wed, 13 Aug 2003 13:20:05 +0200
From: Jan Niehusmann <jan@gondor.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
       Andries Brouwer <aebr@win.tue.nl>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IDE bug - was: Re: uncorrectable ext2 errors
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References: <20030806150335.GA5430@gondor.com> <1060702567.21160.30.camel@dhcp22.swansea.linux.org.uk> <20030813005057.A1863@pclin040.win.tue.nl> <200308130221.26305.bzolnier@elka.pw.edu.pl> <20030813080309.GB2006@gondor.com> <1060773360.8009.11.camel@localhost.localdomain>
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On Wed, Aug 13, 2003 at 12:16:09PM +0100, Alan Cox wrote:
> That sounds about right for UDMA33, which is what you'd get without the
> fix I sent Marcelo a few days ago

But I've not yet patched the kernel, and while booting it says:

Aug 13 09:13:59 sirith kernel: hde: 312581808 sectors (160042 MB) w/8192KiB=
 Cache, CHS=3D19457/255/63, UDMA(100)

hdparm -i also says:
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5=20

So I think it should use UDMA(100), which should give more than 20MB/s
(Seagate says the drive does 32-58MB/s sustained transfer rate)


Jan


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