From owner-freebsd-stable@FreeBSD.ORG Sun Jan 2 14:31:53 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 904B4106566C for ; Sun, 2 Jan 2011 14:31:53 +0000 (UTC) (envelope-from ml@my.gd) Received: from mail-ww0-f50.google.com (mail-ww0-f50.google.com [74.125.82.50]) by mx1.freebsd.org (Postfix) with ESMTP id 2CAD98FC0C for ; Sun, 2 Jan 2011 14:31:52 +0000 (UTC) Received: by wwf26 with SMTP id 26so12554759wwf.31 for ; Sun, 02 Jan 2011 06:31:52 -0800 (PST) Received: by 10.227.132.209 with SMTP id c17mr11122884wbt.135.1293978712062; Sun, 02 Jan 2011 06:31:52 -0800 (PST) Received: from dfleuriot.local (did75-17-88-165-130-96.fbx.proxad.net [88.165.130.96]) by mx.google.com with ESMTPS id q18sm13353288wbe.17.2011.01.02.06.31.50 (version=SSLv3 cipher=RC4-MD5); Sun, 02 Jan 2011 06:31:50 -0800 (PST) Message-ID: <4D208C55.9080409@my.gd> Date: Sun, 02 Jan 2011 15:31:49 +0100 From: Damien Fleuriot User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <4D1C6F90.3080206@my.gd> <4D1F442F.8060801@my.gd> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: ZFS - moving from a zraid1 to zraid2 pool with 1.5tb disks X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Jan 2011 14:31:53 -0000 On 1/1/11 6:28 PM, Jean-Yves Avenard wrote: > On 2 January 2011 02:11, Damien Fleuriot wrote: > >> I remember getting rather average performance on v14 but Jean-Yves >> reported good performance boosts from upgrading to v15. > > that was v28 :) > > saw no major difference between v14 and v15. > > JY Oopsie :) Seeing I for one will have no backups, I think I won't be using v28 on this box, and stick with v15 instead. Are there any views regarding the "best" implementation for a system ? I currently have a ZFS only system but I'm planning on moving it to UFS, with ZFS used only for mass storage. I understand ZFS root is much trickier, and my main fear is that if I somehow break ZFS (by upgrading to v28 for example) I won't be able to boot anymore, thus no repair process...