From owner-freebsd-questions@FreeBSD.ORG  Sat Oct  6 03:48:22 2012
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id A2CED106566C
	for <freebsd-questions@freebsd.org>;
	Sat,  6 Oct 2012 03:48:22 +0000 (UTC)
	(envelope-from richard.elling@gmail.com)
Received: from mail-da0-f54.google.com (mail-da0-f54.google.com
	[209.85.210.54])
	by mx1.freebsd.org (Postfix) with ESMTP id 10B638FC0C
	for <freebsd-questions@freebsd.org>;
	Sat,  6 Oct 2012 03:48:21 +0000 (UTC)
Received: by mail-da0-f54.google.com with SMTP id z9so679643dad.13
	for <freebsd-questions@freebsd.org>;
	Fri, 05 Oct 2012 20:48:21 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
	h=references:in-reply-to:mime-version:content-transfer-encoding
	:content-type:message-id:cc:x-mailer:from:subject:date:to;
	bh=VDBfqCDYyjUTf5srAC/nqa/TjVtEQ5MVlLKz/7x8qH4=;
	b=kzTz7gcVRZ0PuvAegaIBIPmojM1/u3rpaMazZlQiIg7LUAvkYQBeDM058M5tsEmSLM
	MILHWBkq/pzx/pprRCDzDUCt79haG5O+a1vGqDLiKOUVgi1XLWiXVBYPWqds/S+p80/q
	jCX683h5N2Dpgrf6zS19Y5B4GYwTJhFvzCkytf6TUw3E+/bz5HbONUdgsW5dE/7X4G6R
	wfcQi8F0uqLJBqBAVfXQztDSDJJ3Yq7LJO2RTXSCSKDO++FiWo3D7jhZawf5qQZhZAHW
	CkI+TbNqhh4hehTEygNLndBV4PqgJ+gIVAikiphQmVc2AMheDyuNVeTlLSXbSk1a7/59
	1wEg==
Received: by 10.68.238.35 with SMTP id vh3mr31543499pbc.42.1349495301626;
	Fri, 05 Oct 2012 20:48:21 -0700 (PDT)
Received: from [192.168.129.108] ([69.43.176.10])
	by mx.google.com with ESMTPS id gj9sm7027859pbc.16.2012.10.05.20.48.20
	(version=TLSv1/SSLv3 cipher=OTHER);
	Fri, 05 Oct 2012 20:48:21 -0700 (PDT)
References: <20121005205748.GA39237@pcjas.obspm.fr>
In-Reply-To: <20121005205748.GA39237@pcjas.obspm.fr>
Mime-Version: 1.0 (1.0)
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=utf-8
Message-Id: <6E4F0E82-50D0-450A-A72A-3B7BD3795C5B@gmail.com>
X-Mailer: iPad Mail (9B206)
From: Richard Elling <richard.elling@gmail.com>
Date: Fri, 5 Oct 2012 20:48:20 -0700
To: Albert Shih <Albert.Shih@obspm.fr>
Cc: "zfs-discuss@opensolaris.org" <zfs-discuss@opensolaris.org>,
	"freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject: Re: [zfs-discuss] How many disk in one pool
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 06 Oct 2012 03:48:22 -0000

On Oct 5, 2012, at 1:57 PM, Albert Shih <Albert.Shih@obspm.fr> wrote:

> Hi all,
>=20
> I'm actually running ZFS under FreeBSD. I've a question about how many
> disks I =C2=ABcan=C2=BB have in one pool.=20
>=20
> At this moment I'm running with one server (FreeBSD 9.0) with 4 MD1200
> (Dell) meaning 48 disks. I've configure with 4 raidz2 in the pool (one on
> each MD1200)
>=20
> On what I understand I can add more more MD1200. But if I loose one MD1200=

> for any reason I lost the entire pool.=20
>=20
> In your experience what's the =C2=ABlimit=C2=BB ? 100 disk ?=20

I can't speak for current FreeBSD, but I've seen more than 400
disks (HDDs) in a single pool.

 -- richard