From owner-freebsd-fs@freebsd.org Wed Oct 3 08:12:53 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 D2E9610BBE93 for ; Wed, 3 Oct 2018 08:12:52 +0000 (UTC) (envelope-from killing@multiplay.co.uk) Received: from mail-ed1-x531.google.com (mail-ed1-x531.google.com [IPv6:2a00:1450:4864:20::531]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 41B6F71247 for ; Wed, 3 Oct 2018 08:12:52 +0000 (UTC) (envelope-from killing@multiplay.co.uk) Received: by mail-ed1-x531.google.com with SMTP id g32-v6so4457159edg.13 for ; Wed, 03 Oct 2018 01:12:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=multiplay-co-uk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language; bh=GOrbfTr5niV92Xs3ZBdRXqGs26otbqNblZilWK7GVvg=; b=gFN06nkgJAOO7RwzfFGEyb+ufEvhzFO7malXC4c/LP3+4hde3w9I95kkGu7ZyEFLgm 07BWAmtaZds6cbvtcEgk1nEdRnfgI4vxv1afAr5I99PaZT7oDIwz3JTj3mKJI0SY9PuI izqTKZpPSqnDt16Yumks5jd9dP4Nzw0bHUG968w8cgvjRjm1fmljmmJzxrtT+TDnPxJu UgtAfRtBC6DD32lN88MhVpZGbVdUAD02OTvsx6zrhjUpJZtZaguZCam7glzdfyB9UbX2 4By7jtFV1Uw+527PL52kTzAFjiDW1TM/+bpY8I0skXzGTchyYWGu8U8ikYfRaC69g3Lz qBNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language; bh=GOrbfTr5niV92Xs3ZBdRXqGs26otbqNblZilWK7GVvg=; b=AzrvOUQEcdCbPaxpBKVNRGUhewsbr57dY1AGqbWdb9jiiPcEEMqkIpx+t7XvResMsl 93t/o6/4PgSwyYR+TIEJ6IsVShp1ZZpNqdOyFIrTHMmlod5tAYMPU1jv0zGxruOtsbqO ZtRY7NJYo4RxmnhqI46pT8+Zw++L4cN4wy4afYq5KKy50iAxqPbJTZwIcQKZbnc/LCVt eAQ6weenI9JTcFxbfBb8I8Jd0wgw4AZFaY722VFPcGe8NXOcXly09DRemy0zGHcWWIVq CbMfGk2P39PgLCNMqi1MIKgIWylSWhFCfb6tsZ2es9t2UYDpCdOvBRu4scYVHY9rqPQ4 W8cA== X-Gm-Message-State: ABuFfog1kdGY47vb9owGPsdrUrTVv9LR/JWGJHOL6GgFH5RrgAxoqtFl PFZLmewAKIFAyYyECtJQQrMkqASAuHHZPw== X-Google-Smtp-Source: ACcGV61XBgdWl6K4KnHafjjgLJ0gy0jovmDrDZ+xz/aDnEW7bOUUVL84taeXWD0elzsiNMMdWvCj9g== X-Received: by 2002:a17:906:2ce:: with SMTP id 14-v6mr778624ejk.66.1538554370458; Wed, 03 Oct 2018 01:12:50 -0700 (PDT) Received: from [10.44.128.75] ([161.12.40.153]) by smtp.gmail.com with ESMTPSA id y14-v6sm161365ejq.21.2018.10.03.01.12.49 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 03 Oct 2018 01:12:49 -0700 (PDT) Subject: Re: ZFS mix disks diffrent size and speed in a pool To: freebsd-fs@freebsd.org References: <029ac041-39a9-3a42-4dda-7ce94188d83c@unice.fr> From: Steven Hartland Message-ID: <72e4915f-3d2f-3a3c-ada1-44f797b7244f@multiplay.co.uk> Date: Wed, 3 Oct 2018 09:12:50 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <029ac041-39a9-3a42-4dda-7ce94188d83c@unice.fr> Content-Language: en-US Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Content-Filtered-By: Mailman/MimeDel 2.1.27 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 08:12:53 -0000 That will be fine, you wont benefit from the extra space or speed but it will just work. On 03/10/2018 09:07, Jean-Marc LACROIX wrote: > 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 >