From owner-freebsd-hackers Thu Oct 29 08:53:29 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA15647 for freebsd-hackers-outgoing; Thu, 29 Oct 1998 08:53:29 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from Genesis.Denninger.Net (kdhome-2.pr.mcs.net [205.164.6.10]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA15640 for ; Thu, 29 Oct 1998 08:53:27 -0800 (PST) (envelope-from karl@Genesis.Denninger.Net) Received: (from karl@localhost) by Genesis.Denninger.Net (8.9.1/8.8.2) id KAA27633; Thu, 29 Oct 1998 10:53:16 -0600 (CST) Message-ID: <19981029105316.A27621@Denninger.Net> Date: Thu, 29 Oct 1998 10:53:16 -0600 From: Karl Denninger To: "Matthew N. Dodd" Cc: Hallam Oaks , "hackers@FreeBSD.ORG" Subject: Re: Multi-terabyte disk farm References: <19981029102854.A27512@Denninger.Net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: ; from Matthew N. Dodd on Thu, Oct 29, 1998 at 11:46:48AM -0500 Organization: Karl's Sushi and Packet Smashers X-Die-Spammers: Spammers will be LARTed and the remains fed to my cat Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Oct 29, 1998 at 11:46:48AM -0500, Matthew N. Dodd wrote: > On Thu, 29 Oct 1998, Karl Denninger wrote: > > I love the CMD RAID controllers. > > They do have nice features yes, but David Greenman posted a bit about > their limited number of tags (64). Unless CMD has fixed this, these > arrays would be fairly useless in a performance system. > > Granted, they are priced right and if you don't mind not being able to max > out your drives, go for it. > > With fewer tags supported, I'd have no problems putting more drives on > each chain, which would make them an even higher density solution. Hmmm... I'll look into this. We haven't gotten tag reduction warnings on any of our NFS fileservers using these, nor on our INN machine (which uses them in RAID 0+1 config). -- -- Karl Denninger (karl@denninger.net) http://www.mcs.net/~karl I ain't even *authorized* to speak for anyone other than myself, so give up now on trying to associate my words with any particular organization. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message