Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 8 Apr 2005 10:19:07 -0700 (PDT)
From:      Doug White <dwhite@gumbysoft.com>
To:        Brian Behlendorf <brian@hyperreal.org>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: IBM eServer 346 ServeRaid is too slow
Message-ID:  <20050408101651.L63303@carver.gumbysoft.com>
In-Reply-To: <20050407013544.W73813@paz.hyperreal.org>
References:  <200504061842.43294.eugene@imedia.ru> <42548B2D.9010503@xena.ipaustralia.gov.au> <20050407013544.W73813@paz.hyperreal.org>

next in thread | previous in thread | raw e-mail | index | archive | help
In the future, don't cross post -questions and other lists. I'm
leaving the cc: on since we may have people watching the thread,
but please remove -questions for any followups. Thanks.

On Thu, 7 Apr 2005, Brian Behlendorf wrote:

> On Thu, 7 Apr 2005, Carl Makin wrote:
> > I'd say you are seeing the same as I am with the same card in a Dell 1855.
> > There is something wrong with the mpt driver and the disks when they are
> > setup in a raid0 set.  If you split the disks and use them as individual
> > drives then you will get full performance.
>
> It's also a known problem, though not being tracked very well.
>
> http://lists.freebsd.org/pipermail/freebsd-scsi/2004-December/001577.html
> http://lists.freebsd.org/pipermail/freebsd-scsi/2004-December/001578.html
>
> Doesn't look like (from viewcvs.cgi) there's been any recent work on
> this.

We're waiting on a driver update that is tied up in legalities at the
moment.

--
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050408101651.L63303>