From owner-freebsd-questions@FreeBSD.ORG Thu May 23 13:13:45 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 518454AF for ; Thu, 23 May 2013 13:13:45 +0000 (UTC) (envelope-from paul@kraus-haus.org) Received: from mail-vb0-x229.google.com (mail-vb0-x229.google.com [IPv6:2607:f8b0:400c:c02::229]) by mx1.freebsd.org (Postfix) with ESMTP id 126F5FFD for ; Thu, 23 May 2013 13:13:42 +0000 (UTC) Received: by mail-vb0-f41.google.com with SMTP id p14so2122865vbm.14 for ; Thu, 23 May 2013 06:13:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer :x-gm-message-state; bh=4FmOb+x2CEnjt1Q1Erg3eZCLizyxGEgqIJZwKbQi9NU=; b=TU0DpWwtuKiS6i/zq7H4GNqsXBICOjsZwwqZ5DKwmraidy4Cwx5406GDJRNOC1TXxk QUCMhcSd7b/mTNaA36OO5w3hkwLyPOwwQGfzOJKdCg/sG/mIMhdRjRhI/rvh4vFQsDzr kHSD3adZTMPRAAImex6xYFCXZXup85wH+qCJgwXEFwH708pt8OagIvCrlKC2lVk3rrHu Nq5n6Z2KpyekFCVGAW4sh9/TgW0MK7jUjsJiwltgpUCIK11SDCob/+Su9kmQiNT6/8qa Za2eRYVHp3o4DEtmc07nB+Z5EPbi0q92KYUyNwSzuDmqqWNIT0H1wgaEQFX8Pm9Kjx7z lUBg== X-Received: by 10.52.171.135 with SMTP id au7mr4372411vdc.126.1369314821364; Thu, 23 May 2013 06:13:41 -0700 (PDT) Received: from [192.168.2.66] ([96.236.21.119]) by mx.google.com with ESMTPSA id r18sm4562159vdu.10.2013.05.23.06.13.40 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 23 May 2013 06:13:40 -0700 (PDT) Subject: Re: ZFS install on a partition Mime-Version: 1.0 (Mac OS X Mail 6.3 \(1503\)) Content-Type: text/plain; charset=iso-8859-1 From: Paul Kraus In-Reply-To: <20130523085333.GC1426@pcjas.obspm.fr> Date: Thu, 23 May 2013 09:13:39 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: References: <5FB78660-EDA4-40DB-8A0D-B0DE23A0FB6C@kraus-haus.org> <20130523085333.GC1426@pcjas.obspm.fr> To: Albert Shih X-Mailer: Apple Mail (2.1503) X-Gm-Message-State: ALoCoQnVskEuD4ECNWh3LuSGPSpESHGwf1VlxNQ/cUsLkM8SoHubQPPs6BeNc+9QqYffiqrEzIGI Cc: Liste FreeBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 May 2013 13:13:45 -0000 On May 23, 2013, at 4:53 AM, Albert Shih wrote: > Have you ever try to update a ZFS Pool on 9.0 to 9.1 ?=20 I recently upgraded my home server from 9.0 to 9.1, actually, I did = exported my data zpool (raidZ2), did a clean installation of 9.1, then = imported my data zpool. Everything went perfectly. zpool upgrade did NOT = indicate that there was a newer version of zpool so I did not even have = to upgrade the on-disk zpool format (currently 28). > I've a server with a big zpool in 9.0 I'm wonder if it's good idea to > upgrade to 9.1. If I lost the data I'm close to dead person. If I = thinking > to upgrade to 9.1 it's because I got small issue about NFSD, LACP. My data zpool is not that big, only five 1TB drives in a raidZ2 for a = net capacity of about 3TB, plus one 1TB hot spare. My suggestion is to do the following (which is how I did the "upgrade"): 1) on a different physical system install 9.1, get the OS configured how = you want it 2) on the production server, export the data zpool 3) shutdown the production server 4) remove the OS drives from the production server and replace with the = drives you just installed 9.1 on 5) booth the production server with the 9.1 OS drives, make sure = everything is working the way you want 6) import the data zpool If the import fails, you can always put the 9.0 drives back in and get = back up and running fairly quickly. My system has the OS on a mirror zpool of two drives for just the OS. -- Paul Kraus Deputy Technical Director, LoneStarCon 3 Sound Coordinator, Schenectady Light Opera Company