From owner-freebsd-performance@FreeBSD.ORG  Wed Apr 20 14:03:17 2005
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Date: Wed, 20 Apr 2005 16:03:16 +0200
From: Claus Guttesen <kometen@gmail.com>
To: Eric Anderson <anderson@centtech.com>
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cc: freebsd-performance@freebsd.org
Subject: Re: some simple nfs-benchmarks on 5.4 RC2
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> That's about what I expected.  RAID 5 depends on fast xor, so a slow proc=
essor
> in a hardware RAID5 box will slow you down a lot.
>=20
> You should try taking the two RAID5's (6 disks each) created on your orig=
inal
> controller and striping those together (RAID 50) - this should get you so=
me
> better performance, probably not as close as the amr device, but I would =
guess
> somewhere in the 80-90mb/s range.

This can't be done in hardware, since atabeast only supports raid 0,
1, 4 and 5. But I will definitively have this in my mind this when we
get a new storage-system (a different one).

Thank you for your guidance.

regards
Claus