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Date: Thu, 3 Apr 2003 23:25:16 +0200 (CEST)
From: Stephan van Hienen <raid@a2000.nu>
To: Ezra Nugroho <ezran@goshen.edu>
cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org
Subject: Re: RAID 5 performance problems
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On Thu, 3 Apr 2003, Ezra Nugroho wrote:

> What should I expect from a 8 drive raid 5 on 3ware 7500-8?
> I get only
> /dev/sda:
>  Timing buffer-cache reads:   128 MB in  0.74 seconds =172.97 MB/sec
>  Timing buffered disk reads:  64 MB in  1.55 seconds = 41.29 MB/sec
>
> which seems to be slow compared to the numbers above

I think you should look at the '3ware bad write speed' thread on
linux-raid
looks like you are running in 3ware raid mode ?