From owner-freebsd-fs@freebsd.org Wed Oct 3 08:08:40 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C34B510BBC10 for ; Wed, 3 Oct 2018 08:08:40 +0000 (UTC) (envelope-from Jean-Marc.Lacroix@unice.fr) Received: from ip-nice01.unice.fr (ip-nice01.unice.fr [134.59.1.214]) by mx1.freebsd.org (Postfix) with ESMTP id 4B9EC70E0E for ; Wed, 3 Oct 2018 08:08:40 +0000 (UTC) (envelope-from Jean-Marc.Lacroix@unice.fr) X-IronPort-AV: E=Sophos;i="5.54,335,1534802400"; d="scan'208";a="234131365" Received: from naxos2.unice.fr ([134.59.1.112]) by ip-nice08.unice.fr with ESMTP; 03 Oct 2018 10:07:31 +0200 Received: from [134.59.10.29] (txmath29.unice.fr [134.59.10.29]) (authenticated bits=0) by naxos2.unice.fr (8.14.7/8.14.7) with ESMTP id w9387Vh7331062 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 3 Oct 2018 10:07:31 +0200 To: freebsd-fs@freebsd.org From: Jean-Marc LACROIX Subject: ZFS mix disks diffrent size and speed in a pool Message-ID: <029ac041-39a9-3a42-4dda-7ce94188d83c@unice.fr> Date: Wed, 3 Oct 2018 10:07:31 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: fr X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Oct 2018 08:08:40 -0000 Hello,     we actually have a storage solution based on a DELL 630 + 3 JBODs DELL MD 1420 (HBA mode), The ZFS pool is made of 9 raidz2 vdevs + 1 mirror log + 2 spares     All disks are of the same type in capacity and speed. The problem is that DELL is unable to provide the SAME kind of disk (capacity AND speed) when a disk has to be replaced. So the question is: Is it possible to replace a 1TB 7200rpm by a 1.2TB 10000rpm disk without any consequences for the existing pool ? THanks in advance Best Regards JM -- LACROIX Jean-Marc office: W612 Administrateur Systèmes et Réseaux LJAD phone: 04.92.07.62.51 fax: 04.93.51.79.74 email: jml@unice.fr Address: Laboratoire J.A.Dieudonne - UMR CNRS 7351 Universite de Nice Sophia-Antipolis Parc Valrose - 06108 Nice Cedex 2 - France