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From: Joe Greco <jgreco@brasil.moneng.mei.com>
Message-Id: <199608291420.JAA06736@brasil.moneng.mei.com>
Subject: Re: Streamlogic RAIDION drive arrays
To: klam@awod.com (Ken Lam)
Date: Thu, 29 Aug 1996 09:20:22 -0500 (CDT)
Cc: taob@io.org, freebsd-hackers@FreeBSD.org, freebsd-scsi@FreeBSD.org
In-Reply-To: <1.5.4.32.19960829002801.00913104@awod.com> from "Ken Lam" at Aug 28, 96 08:28:01 pm
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> At 03:39 PM 8/28/96 -0400, you wrote:
> >    Has anyone tried Streamlogic's RAIDION drive arrays?  Apparently
> >they can do RAID 1 and 5 in hardware... all your host sees is one very
> >large, very fast disk.  I'm thinking of tossing one of those with a
> >dozen 2GB drives or so in for a news server.  I may not need special
> >drivers, but I can see some hurdles with disktab-related stuff.
> >Maybe I can get an eval unit from them to play with.  :)
> 
> Yes.  I have installed one for a non-linear video editor.   It was
> a 12GB array.  Worked great.  Of course it was used on a Macintosh.
> 
> It wasn't streamlogic, but micropolis then. The only thing I
> didn't really like was that I couldn't purchase is with other
> brand drives (I prefer Seagate Hawks).
> 
> I didn't get a chance to test it under FreeBSD.  Fairly fast, but
> other than the RAID 5 aspect, why not use CCD?  News spool is hardly
> a get killed by users application (unless you have lots of 
> disgruntled postal workers online ;) )

If it has write back cache, you have a reason to look at it :-)

If not, it's not worth much.

I've been considering trying something like a Mylex DAC960SI (?),
SCSI-to-SCSI RAID controller, simply for the cache you can stick on it.

... JG