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From: Rashid  Karimov <rashid@rk.ios.com>
Message-Id: <199606121945.PAA00542@rk.ios.com>
Subject: Re: Adaptec2940UW vs. BusLogicBT-958 (opinions?)
To: shovey@buffnet.net (Stephen Hovey)
Date: Wed, 12 Jun 1996 15:45:47 -0400 (EDT)
Cc: bobster@primenet.com, jparnas@jparnas.cybercom.net,
        freebsd-questions@freebsd.org, bsdi-users@bsdi.com
In-Reply-To: <Pine.BSD.3.91.960612150027.11030B-100000@buffnet7.buffnet.net> from "Stephen Hovey" at Jun 12, 96 03:02:13 pm
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		Hi there folx,

> On Wed, 12 Jun 1996, Bob Loftus wrote:
> > On Wed, 12 Jun 1996, Jacob M. Parnas wrote:
> > > Would you please elaborate a bit on the logic?  I don't see why with up to
> > > 15 devices, you couldn't fill up 40MB/sec for a fast/wide/ultra SCSI III bus?
> > > Especially with some raids counting as one large SCSI device?
> > I did.  http://www.nexial.nl/cgi-bin/bsdi  search for "fast wide scsi 
> > paul vixie"  That should do it. One would have to question the wisdom of 
> > putting that many devices in a chain on one bus. But hey maybe you could 
> > teach me something, I'm sure no expert. Yet. ;->
> > Regards,
> > Bob...
> > 
> 
> Ive been watching this thread -  Im one of those people in need of many 
> fast drives and am seeking a better solution that a regular pci 2940 and 
> regular scsi-2 drives.  They+freebsd just dont do it thruput wise for a 
> very full news server.  I have found hat one gets better thruput if you 
> have 4 2 gig drives than if you have 1 8.  So there is one reason for 
> alot of drives.
> 

	Go for CCD - 3 adaptors and 6 HDDs will give you ~18Mb thru-put,
	which will be more than enough for any news-server. 
	You'll also get ~400 art/sec unlink( expire) speed.

	I wouldn't even think about using anything _but ccd for
	news server.

	Rashid.