From owner-freebsd-cluster Mon Feb 3 10:31:54 2003 Delivered-To: freebsd-cluster@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6D4AE37B401 for ; Mon, 3 Feb 2003 10:31:53 -0800 (PST) Received: from malasada.lava.net (malasada.lava.net [64.65.64.17]) by mx1.FreeBSD.org (Postfix) with ESMTP id D36BF43F9B for ; Mon, 3 Feb 2003 10:31:52 -0800 (PST) (envelope-from cliftonr@lava.net) Received: by malasada.lava.net (Postfix, from userid 102) id 1652017A04C; Mon, 3 Feb 2003 08:31:47 -1000 (HST) Date: Mon, 3 Feb 2003 08:31:46 -1000 From: Clifton Royston To: Chad Ziccardi Cc: Gabriel Ambuehl , "Rouzer, Charles A (Chuck)" , freebsd-cluster@FreeBSD.ORG Subject: Re: freebsd cluster target market Message-ID: <20030203083146.A26322@lava.net> Mail-Followup-To: Chad Ziccardi , Gabriel Ambuehl , "Rouzer, Charles A (Chuck)" , freebsd-cluster@FreeBSD.ORG References: <000901c2b8ef$57e4eb70$0201000a@LAPTOP> <20030110132550.A18143@lava.net> <193699876562.20030112164424@buz.ch> <001701c2ba84$6f307010$0201000a@LAPTOP> <37722441765.20030112230029@buz.ch> <20030203123902.D20589@digitalfreaks.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20030203123902.D20589@digitalfreaks.org>; from ziccardi@digitalfreaks.org on Mon, Feb 03, 2003 at 12:40:36PM -0500 Sender: owner-freebsd-cluster@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, Feb 03, 2003 at 12:40:36PM -0500, Chad Ziccardi wrote: > begin quote from Gabriel Ambuehl written 2003-01-12: > > > I actually once HAD vinum doing network RAID. It's an awful hack and > > not of any practical use, but enough for proof of concept: > > > > Mount foreign filesystem over NFS. Use vn(4) and vnconfig to create a > > FS backed "partition", use disklabel to assign the correct partition > > type to it and you're set. It's just horrible unstable, slow and prone > > to error. Great (ly twisted) minds think alike, I guess. We experimented with this some here as a "skunkworks" (unofficial) project using various combinations of Linux, FreeBSD, OpenBSD, and BSD/OS. The problem is that no combination we tried seemed to have a solid and stable enough implementation of NFS and of vinum or "loopback FS" + raidframe, etc. etc. to get it working reliably. Let alone performing well. On the freebsd-current list, PHK is sounding pretty enthusiastic about getting NBD implemented as an available block driver under GEOM. That would be the "right place" to make it work with pretty much everything disk-related in FreeBSD, I think. -- Clifton -- Clifton Royston -- LavaNet Systems Architect -- cliftonr@lava.net "If you ride fast enough, the Specialist can't catch you." "What's the Specialist?" Samantha says. "The Specialist wears a hat," says the babysitter. "The hat makes noises." She doesn't say anything else. Kelly Link, _The Specialist's Hat_ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-cluster" in the body of the message