From owner-freebsd-stable@FreeBSD.ORG  Sun Jan  2 15:24:52 2011
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
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 7035B106564A
	for <freebsd-stable@freebsd.org>; Sun,  2 Jan 2011 15:24:52 +0000 (UTC)
	(envelope-from ronald-freebsd8@klop.yi.org)
Received: from fep11.mx.upcmail.net (fep11.mx.upcmail.net [62.179.121.31])
	by mx1.freebsd.org (Postfix) with ESMTP id A77ED8FC08
	for <freebsd-stable@freebsd.org>; Sun,  2 Jan 2011 15:24:51 +0000 (UTC)
Received: from edge01.upcmail.net ([192.168.13.236]) by viefep11-int.chello.at
	(InterMail vM.8.01.02.02 201-2260-120-106-20100312) with ESMTP
	id <20110102152449.LYTM28175.viefep11-int.chello.at@edge01.upcmail.net>
	for <freebsd-stable@freebsd.org>; Sun, 2 Jan 2011 16:24:49 +0100
Received: from pinky ([213.46.23.80]) by edge01.upcmail.net with edge
	id qfQo1f00Q1jgp3H01fQpu2; Sun, 02 Jan 2011 16:24:49 +0100
X-SourceIP: 213.46.23.80
Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes
To: freebsd-stable@freebsd.org
References: <4D1C6F90.3080206@my.gd>
	<op.vojfsirj8527sy@212-123-145-58.ip.telfort.nl>
	<4D1F442F.8060801@my.gd>
	<AANLkTi=ec9=nE7rQ01Hwk-+bUc7CaFsh9f9a5wGLcWJV@mail.gmail.com>
	<4D208C55.9080409@my.gd>
Date: Sun, 02 Jan 2011 16:24:48 +0100
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
From: "Ronald Klop" <ronald-freebsd8@klop.yi.org>
Message-ID: <op.voos3mph8527sy@pinky>
In-Reply-To: <4D208C55.9080409@my.gd>
User-Agent: Opera Mail/11.00 (Win32)
X-Cloudmark-Analysis: v=1.1 cv=kRmApA04uPli/d8B8u1M0swu98hronvs6VvAqI8uQP0=
	c=1 sm=0 a=tZDC3L0OECsA:10 a=bgpUlknNv7MA:10 a=kj9zAlcOel0A:10
	a=hLuhQxTjI5YOYCVGivYA:9 a=7cfVa2-A4pEzs-RSc2k64njx2TUA:4
	a=CjuIK1q_8ugA:10 a=iGhaP2GBsIPPIOcz:21 a=hVrLo3FZL7S-a0Rb:21
	a=HpAAvcLHHh0Zw7uRqdWCyQ==:117
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 <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 02 Jan 2011 15:24:52 -0000

On Sun, 02 Jan 2011 15:31:49 +0100, Damien Fleuriot <ml@my.gd> wrote:

>
>
> On 1/1/11 6:28 PM, Jean-Yves Avenard wrote:
>> On 2 January 2011 02:11, Damien Fleuriot <ml@my.gd> 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...

You can repair by booting from USB of CD in a lot of cases.

Ronald.