From owner-freebsd-fs@FreeBSD.ORG Wed Mar 2 10:50:13 2011 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CFA261065686 for ; Wed, 2 Mar 2011 10:50:13 +0000 (UTC) (envelope-from roberto@keltia.freenix.fr) Received: from keltia.net (centre.keltia.net [IPv6:2a01:240:fe5c::41]) by mx1.freebsd.org (Postfix) with ESMTP id 50F988FC18 for ; Wed, 2 Mar 2011 10:50:08 +0000 (UTC) Received: from roberto-al.eurocontrol.fr (aran.keltia.net [88.191.250.24]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: roberto) by keltia.net (Postfix/TLS) with ESMTPSA id BBBE6DB7A for ; Wed, 2 Mar 2011 11:50:05 +0100 (CET) Date: Wed, 2 Mar 2011 11:50:00 +0100 From: Ollivier Robert To: freebsd-fs@freebsd.org Message-ID: <20110302105000.GA38004@roberto-al.eurocontrol.fr> References: <0E00DAFC-C39F-47DC-B9AF-16419C20997F@tao.org.uk> <615F1346-E830-42E2-B229-4181B8BC56BD@exonetric.com> <53FA69D2-2EF0-4CBF-985B-6E710F15FE02@tao.org.uk> <20110302001650.GB49147@icarus.home.lan> <27423168-85BE-41B1-8E14-94F01310EFE4@tao.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <27423168-85BE-41B1-8E14-94F01310EFE4@tao.org.uk> X-Operating-System: MacOS X / Macbook Pro - FreeBSD 7.2 / Dell D820 SMP User-Agent: Mutt/1.5.20 (2009-06-14) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.3 (keltia.net); Wed, 02 Mar 2011 11:50:06 +0100 (CET) Subject: Re: ZFS on a single disk? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Mar 2011 10:50:13 -0000 According to Dr Josef Karthauser: > I guess I should have been a bit clearer, I mean without any external devices backing them. Seeing as this is to be running on a VPS/Xen at a hosting environment I'm not able to add any additional devices. It will work even w/o anything added. I've run an amd64 VM for several months like that. > I'm not memory starved however. Is it madness to use a memory disk? (The instance in question will have 6gb of ram total to play with.). You could use an md device to serve as a cache but with only 6 GB, just let ZFS use whatever it needs. -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.net In memoriam to Ondine, our 2nd child: http://ondine.keltia.net/