From owner-freebsd-questions@FreeBSD.ORG Fri Oct 5 20:59:25 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 94DA31065672 for ; Fri, 5 Oct 2012 20:59:25 +0000 (UTC) (envelope-from Albert.Shih@obspm.fr) Received: from smtp-int-m.obspm.fr (smtp-int-m.obspm.fr [145.238.187.15]) by mx1.freebsd.org (Postfix) with ESMTP id 2A8D98FC08 for ; Fri, 5 Oct 2012 20:59:24 +0000 (UTC) Received: from pcjas.obspm.fr (pcjas.obspm.fr [145.238.184.233]) by smtp-int-m.obspm.fr (8.14.3/8.14.3/SIO Observatoire de Paris - 07/2009) with ESMTP id q95KvmDk018551 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 5 Oct 2012 22:57:50 +0200 Date: Fri, 5 Oct 2012 22:57:48 +0200 From: Albert Shih To: zfs-discuss@opensolaris.org Message-ID: <20121005205748.GA39237@pcjas.obspm.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.5.21 (2010-09-15) X-Miltered: at smtp-int-m.obspm.fr with ID 506F49CC.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 506F49CC.000/145.238.184.233/pcjas.obspm.fr/pcjas.obspm.fr/ Cc: freebsd-questions@freebsd.org Subject: How many disk in one pool 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: Fri, 05 Oct 2012 20:59:25 -0000 Hi all, I'm actually running ZFS under FreeBSD. I've a question about how many disks I «can» have in one pool. At this moment I'm running with one server (FreeBSD 9.0) with 4 MD1200 (Dell) meaning 48 disks. I've configure with 4 raidz2 in the pool (one on each MD1200) On what I understand I can add more more MD1200. But if I loose one MD1200 for any reason I lost the entire pool. In your experience what's the «limit» ? 100 disk ? How FreeBSD manage 100 disk ? /dev/da100 ? Regards. JAS -- Albert SHIH DIO bâtiment 15 Observatoire de Paris 5 Place Jules Janssen 92195 Meudon Cedex Téléphone : 01 45 07 76 26/06 86 69 95 71 xmpp: jas@obspm.fr Heure local/Local time: ven 5 oct 2012 22:52:22 CEST