On Tuesday 11 September 2001, at 12:41 +1000, Keith Owens wrote:
> On 10 Sep 2001 19:24:15 -0700,
> Florin Andrei <florin@xxxxxxx> wrote:
> >ide=nodma solves the problem for the installer. But, after the install,
> >when the system comes up for the first time, it's the same problem: it's
> >frozen when it tries to mount large partitions.
> >I can add to the kickstart file, to the lilo option, the "--append
> >ide=nodma" string, and it appears to solve the problem. But, still, if i
> >want a high performance from that system (and believe me, i do want
> >that, since it's gonna be a busy mail gateway), not using DMA will hurt
> >performance.
>
> It is likely to be a chipset problem rather than XFS. RH 7.1 was
> probably compiled without CONFIG_IDEDMA_PCI_AUTO.
I used to have the same problem on sgi 1100's. The solution is to patch
the kernel with Andre Hedrick's IDE patch, which supports the
Serverworks 3LE chipset.
The patches can be found on: http://www.linux-ide.org
With this patch I get ~16 MB/s on a single Seagate Barracuda ST320420A
disk drive. Don't forget to tune with hdparm(8) (hdparm -c3 -d1 -A1 -m16
-X66 works best here).
Regards,
-Martin
--
Martin Hilgeman Technical consultant
VNET: 955-6885
SGI Mailstop: INL-3650
The Netherlands E-mail: martinh@xxxxxxxxxxxxxxx
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