[7454] in linux-scsi channel archive

home help back first fref pref prev next nref lref last post

Re: Please Help - SCSI RAID device very slow

daemon@ATHENA.MIT.EDU (Luca Berra)
Thu Oct 28 10:41:50 1999

X-Envelope-To: linux-raid@vger.rutgers.edu
Date:   Thu, 28 Oct 1999 16:30:54 +0200
From:   Luca Berra <bluca@comedia.it>
To:     Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc:     m.r.clark@btinternet.com, linux-scsi@vger.rutgers.edu,
        linux-raid@vger.rutgers.edu
Message-ID: <19991028163054.D11879@colombina.comedia.it>
Reply-To: bluca@comedia.it
Mail-Followup-To: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	m.r.clark@btinternet.com, linux-scsi@vger.rutgers.edu,
	linux-raid@vger.rutgers.edu
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
In-Reply-To: <E11gcHo-0004YN-00@the-village.bc.nu>

On Thu, Oct 28, 1999 at 12:15:19AM +0100, Alan Cox wrote:
> > Does anyone know how I stop the MegaRAID using the onboard INTEL SCSI
> > Controller? (i960) It should be using my SYMBIOS card...???
> 
> An i960 isnt a scsi controller. If you want to use the symbios directly load
> the ncr53c8xx driver and not the symbios driver. I'not totally sure if that
> will work but it is at least the right driver. That will basically cut out
> use of the megaraid totally

no way!
the megaraid controller hides completely the symbios onboard chip
so linux does not see it at all.
I know of one case where it is possible to bypass the megaraid
for at lease one channel, it is the embedded netraid(remarketed megaraid)
on hp netservers LH3, you have to change a setting in the bios.
All other cards i tested (netraid 1, netraid3, netraid3si)
don't allow this option.

Regards,
Luca

-- 
Luca Berra -- bluca@comedia.it
    Communications Media & Services S.r.l.

-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.rutgers.edu

home help back first fref pref prev next nref lref last post