Date: Mon, 30 May 2005 14:01:56 -0400
From: Jeff Sipek <jeffpc@optonline.net>
Subject: Re: Adaptec AIC-79xx HostRaid
In-reply-to: <20050530172105.GA15253@havoc.gtf.org>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Clemente Aguiar <caguiar@madeiratecnopolo.pt>,
       linux-kernel@vger.kernel.org
Message-id: <20050530180156.GA32606@optonline.net>
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On Mon, May 30, 2005 at 01:21:05PM -0400, Jeff Garzik wrote:
> On Mon, May 30, 2005 at 06:13:03PM +0100, Clemente Aguiar wrote:
> >=20
> > Hello,
> >=20
> > We have acquired some IBM xServers which have an integrated raid contro=
ller
> > based on the Adaptec AIC-79xx U320 SCSI controller (called HostRaid).
> >=20
> > Is there already support for HostRaid? Are there drivers for it?
> > >From which kernel version and where do I find it in the config?
>=20
> HostRaid is just software RAID; you can ignore it and let Linux use the
> underlying SCSI devices via the standard aic79xx driver.

As far as I know, it is software raid done much closer to the hw than
the linux sw raid (md).

There is a module (binary only) from Adaptec that lets Linux use HostRaid,
but from what I saw, it just worked with RHEL 3.x and some other ancient
RH releases. When I was installing RHEL 4 on an IBM xServer, I decided to
just do standard linux sw array.

Jeff.

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