From owner-freebsd-fs@FreeBSD.ORG Mon Mar 10 14:03:54 2014 Return-Path: Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 24A90E93 for ; Mon, 10 Mar 2014 14:03:54 +0000 (UTC) Received: from smtp-int-m.obspm.fr (smtp-int-m.obspm.fr [145.238.187.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 9A927D06 for ; Mon, 10 Mar 2014 14:03:53 +0000 (UTC) Received: from pcjas.obspm.fr (pcjas.obspm.fr [145.238.184.233]) by smtp-int-m.obspm.fr (8.14.4/8.14.4/SIO Observatoire de Paris - 07/2009) with ESMTP id s2AE3hgE026741 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Mon, 10 Mar 2014 15:03:44 +0100 Date: Mon, 10 Mar 2014 15:03:43 +0100 From: Albert Shih To: freebsd-fs@FreeBSD.org Subject: ZFS & Dedup & SSD. Message-ID: <20140310140343.GA22517@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/1.5.22 (2013-10-16) X-Miltered: at smtp-int-m.obspm.fr with ID 531DC63F.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 531DC63F.000/145.238.184.233/pcjas.obspm.fr/pcjas.obspm.fr/ X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Mar 2014 14:03:54 -0000 Hi all, If I use a ssd for dedup, what's happen if I loose the content of the ssd. Can I get the data event without the ssd ? I ask that because SSD is expensive so make raid on SSD is more expensive. So I like to use just one SSD for the dedup. Regards. JAS -- Albert SHIH DIO bâtiment 15 Observatoire de Paris 5 Place Jules Janssen 92195 Meudon Cedex France Téléphone : +33 1 45 07 76 26/+33 6 86 69 95 71 xmpp: jas@obspm.fr Heure local/Local time: lun 10 mar 2014 15:02:05 CET