From mboxrd@z Thu Jan  1 00:00:00 1970
From: Robin Bowes <robin-lists@robinbowes.com>
Subject: Re: raid5 software vs hardware: parity calculations?
Date: Sat, 13 Jan 2007 23:23:23 +0000
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Bill Davidsen wrote:
>
> There have been several recent threads on the list regarding software
> RAID-5 performance. The reference might be updated to reflect the poor
> write performance of RAID-5 until/unless significant tuning is done.
> Read that as tuning obscure parameters and throwing a lot of memory into
> stripe cache. The reasons for hardware RAID should include "performance
> of RAID-5 writes is usually much better than software RAID-5 with
> default tuning.

Could you point me at a source of documentation describing how to
perform such tuning?

Specifically, I have 8x500GB WD STAT drives on a Supermicro PCI-X 8-port
SATA card configured as a single RAID6 array (~3TB available space)

Thanks,

R.