From owner-freebsd-stable  Wed Aug  5 11:40:56 1998
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From: Ted Buswell <tbuswell@mediaone.net>
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Date: Wed,  5 Aug 1998 14:40:01 -0400 (EDT)
To: Eivind Eklund <eivind@yes.no>
Cc: Vadim Belman <voland@plab.ku.dk>,
        "freebsd-stable@FreeBSD.ORG" <freebsd-stable@FreeBSD.ORG>
Subject: Re: dpt controller
In-Reply-To: <19980805184122.17119@follo.net>
References: <199808050953.LAA05046@plab.ku.dk>
	<19980805184122.17119@follo.net>
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Eivind Eklund writes:
 > On Wed, Aug 05, 1998 at 11:54:44AM +0100, Vadim Belman wrote:
 > > 	Hi!
 > > 
 > > On Tue, 4 Aug 1998 10:33:09 -0700 (PDT), Tom wrote:
 > > 
 > > >> CLARiiON RAID system and I have some performance problems. So, any
 > > >> information would be useful.
 > > >  CLARiiON RAID?  That isn't DPT based as far as I know.
 > > 
 > > 	Thanx, you gave me some useful information, finally. The only
 > > (and last) question I have: is there any way to check this fact?
 > 
 > If the DPT driver don't find it, it is not EATA-based (which is an ANSI
 > standard, but DPT are the only ones making the controllers...)
 > 
 > Eivind.

CLARiiON devices are not DPT based.  To verify this, you
could probably pull the storage processor and look at the board to
satisfy your curiousity.
As for performance tuning, the array manual would probably be a good
start if you've already determined that it's an array problem.

What's EATA?

-Ted

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