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Re: XFS and RAID5

To: Andrew Klaassen <ak@xxxxxxx>
Subject: Re: XFS and RAID5
From: Simon Matter <simon.matter@xxxxxxxxxxxxxxxx>
Date: Mon, 18 Jun 2001 15:51:03 +0200
>received: from mobile.sauter-bc.com (unknown [10.1.6.21]) by basel1.sauter-bc.com (Postfix) with ESMTP id 2A7A757306; Mon, 18 Jun 2001 15:56:41 +0200 (CEST)
Cc: linux-xfs@xxxxxxxxxxx
Organization: Sauter AG, Basel
References: <4.3.2.7.2.20010618070434.02d268e0@pop.xs4all.nl> <200106180555.FAA00389@groucho.maths.monash.edu.au> <20010618091334.A2209@key.dkp.com>
Sender: owner-linux-xfs@xxxxxxxxxxx
I'm currently setting up two 240GB Servers with 4360G IDE ATA100
drives. The machine is DELL Precision 220 with PIII/933 and 256M
RDRAM. Chipset is i820 (Camino). I made several RAID1 partitions
for the system and one 180G RAID5, LVM on top of it and XFS file-
systems inside of the lvols. It performs very well but the big
problem is that I get corrupt files on the RAID1 and RAID5 volumes.
I'm shure it's a problem of the mainboard / chipset since I have
the same config on my old P200MMX at home with absolutely no
problem. The next step was to buy a Promise IDE controller and I
bought the new Ultra100 TX2 cos it was cheap and available around
the corner. But oh my, it was listed compatible with RH 6.2 and 7.0
on the package but it is NOT. So I went to linux-ide.org and got
the IDE patch and created patched RH-7.1-XFS kernel filesets. I will
try them today on the DELL. Now I downloaded rawhide kernel 2.4.5
RPMS and if the Promise TX2 test is successful, I will try to
create patched RPMS of 2.4.5 as well. If you are interested in my
Promise TX2 patched RPMS, let me know.

Simon

Andrew Klaassen schrieb:
> 
> On Mon, Jun 18, 2001 at 03:55:36PM +1000,
> Robin Humble wrote:
> 
> > Around the time of the 2.4.3 kernel we used XFS over software
> > RAID5 for a month or so before a disk died and we didn't
> > bother replacing it - we've been using 420G (7 disks) of RAID0
> > since with zero problems. RAID5 seemed ok and we sorted out
> > any initial performance problems as we found them with the
> > super-responsive XFS people on this list.
> 
> 7 disks?  I'm curious: SCSI or IDE?  (We're looking into a
> Promise or 3ware card to allow us to put lots of IDE drives in a
> box and run software RAID over top, and were wondering if anyone
> else has had experience with these cards+software RAID+XFS.)
> 
> Andrew Klaassen

-- 
Simon Matter              Tel:  +41 61 695 57 35
Fr.Sauter AG / CIT        Fax:  +41 61 695 53 30
Im Surinam 55
CH-4016 Basel             [mailto:simon.matter@xxxxxxxxxxxxxxxx]



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