From owner-freebsd-questions@FreeBSD.ORG Wed Oct 1 09:08:34 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D50941065689 for ; Wed, 1 Oct 2008 09:08:34 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from QMTA05.westchester.pa.mail.comcast.net (qmta05.westchester.pa.mail.comcast.net [76.96.62.48]) by mx1.freebsd.org (Postfix) with ESMTP id 789418FC28 for ; Wed, 1 Oct 2008 09:08:34 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from OMTA06.westchester.pa.mail.comcast.net ([76.96.62.51]) by QMTA05.westchester.pa.mail.comcast.net with comcast id MM1C1a00616LCl055M8ZzX; Wed, 01 Oct 2008 09:08:33 +0000 Received: from koitsu.dyndns.org ([67.180.253.227]) by OMTA06.westchester.pa.mail.comcast.net with comcast id MM8Y1a00H4v8bD73SM8ZYv; Wed, 01 Oct 2008 09:08:33 +0000 X-Authority-Analysis: v=1.0 c=1 a=p9pqlfZpwwoA:10 a=6FVY1_NhIzwA:10 a=8pif782wAAAA:8 a=QycZ5dHgAAAA:8 a=PunZiohGKOG-6HL_G-4A:9 a=y2vjqZF9HYQtvBxyLvwK72zCF8EA:4 a=EoioJ0NPDVgA:10 a=LY0hPdMaydYA:10 Received: by icarus.home.lan (Postfix, from userid 1000) id 7F575C9432; Wed, 1 Oct 2008 02:08:32 -0700 (PDT) Date: Wed, 1 Oct 2008 02:08:32 -0700 From: Jeremy Chadwick To: Matthew Seaman Message-ID: <20081001090832.GB15939@icarus.home.lan> References: <48E21C66.8080407@FreeBSD.org> <20080930161407.E16761@wojtek.tensor.gdynia.pl> <20080930205435.B20033@wojtek.tensor.gdynia.pl> <00ee01c92346$69508fa0$3bf1aee0$@com> <20080930224447.GA58065@icarus.home.lan> <20081001083637.C7317@wojtek.tensor.gdynia.pl> <48E33CC6.7050504@infracaninophile.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48E33CC6.7050504@infracaninophile.co.uk> User-Agent: Mutt/1.5.18 (2008-05-17) Cc: Wojciech Puchar , Danny Do , freebsd-questions@freebsd.org Subject: Re: Optimal File System config for 2.5TB RAID5 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Oct 2008 09:08:34 -0000 On Wed, Oct 01, 2008 at 10:03:02AM +0100, Matthew Seaman wrote: > I've occasionally wondered why there isn't a simple device commonly available > which consists of a few hundred MB of battery backed (or otherwise persistent > in the face of power loss) RAM that can plug into a PCI slot and fulfil that > function generically for any disks in a machine. Solid state hard drives are > getting there, but they're still too expensive and not really fast enough yet. You mean this? http://en.wikipedia.org/wiki/I-RAM -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |