From owner-freebsd-stable@FreeBSD.ORG  Mon Jun 15 08:02:57 2009
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 2464D1065672
	for <freebsd-stable@freebsd.org>; Mon, 15 Jun 2009 08:02:57 +0000 (UTC)
	(envelope-from dan.naumov@gmail.com)
Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.249])
	by mx1.freebsd.org (Postfix) with ESMTP id D03848FC17
	for <freebsd-stable@freebsd.org>; Mon, 15 Jun 2009 08:02:56 +0000 (UTC)
	(envelope-from dan.naumov@gmail.com)
Received: by an-out-0708.google.com with SMTP id c3so1908196ana.13
	for <freebsd-stable@freebsd.org>; Mon, 15 Jun 2009 01:02:56 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:mime-version:received:in-reply-to:references
	:date:message-id:subject:from:to:cc:content-type
	:content-transfer-encoding;
	bh=9V0uIrmsAxGCJPdPbY/IsFexIX9mL4ZTzD50pYD4mb0=;
	b=vp4LX30e3sAy9I5YPfJNuqGrROg6POZxdbcyQge0HQWVH+K+ddb0TBt7o+uI7dXxxS
	b75VCpDG5f0Mugg08BggxWKzIDagLw2jl86NiIlW+PPnzu8KOZ3+S5OsnDTw4pyku9/L
	7AfvpedpHUZ3wARGjX93zlsP/gnbBhFdmm8Gw=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type:content-transfer-encoding;
	b=JUTqpgslSNRsGkrLougrX+buKvISxzFPYD6yxHgZlO5OY9ONr68UjqmyU9FBF1ycT4
	XdItg508oV6/L9l2uCE4IDB6zA74qa8pmqG2o9gFneFkbXArJfSvj+JuUScL98cJtBxF
	0wh4MTmMJveE+TcVrvxKaXH3Kc8AFq5M5q2a4=
MIME-Version: 1.0
Received: by 10.100.201.11 with SMTP id y11mr4141533anf.190.1245052976242; 
	Mon, 15 Jun 2009 01:02:56 -0700 (PDT)
In-Reply-To: <E1MG6vC-000K7w-Ac@dilbert.ticketswitch.com>
References: <cf9b1ee00906142331g1c6ccbb1w979d967b4c12fea0@mail.gmail.com>
	<E1MG6vC-000K7w-Ac@dilbert.ticketswitch.com>
Date: Mon, 15 Jun 2009 11:02:56 +0300
Message-ID: <cf9b1ee00906150102g6b1e3d93of25917c3e3128955@mail.gmail.com>
From: Dan Naumov <dan.naumov@gmail.com>
To: Pete French <petefrench@ticketswitch.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Cc: freebsd-stable@freebsd.org
Subject: Re: Does this disk/filesystem layout look sane to you?
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: Mon, 15 Jun 2009 08:02:57 -0000

If this is true, some magic has been done to the FreeBSD port of ZFS,
because according to SUN documentation is is definitely not supposed
to be possible.

- Dan Naumov


On Mon, Jun 15, 2009 at 10:48 AM, Pete
French<petefrench@ticketswitch.com> wrote:
>> The new 2tb disk you buy can very often be actually a few sectors
>> smaller then the disk you are trying to replace, this in turn will
>> lead to zfs not accepting the new disk as a replacement, because it's
>> smaller (no matter how small).
>
> Heh - you are in for a pleasent surprise my friend! ;-) If you actually
> try this in practice you will find ZFS *does* accept a smaller drive as
> a replacement. Preseumably to cope with the natural variability in sector
> size that you describe.
>
> Surprised me too the first time I saw it...
>
> -pete.
>