From owner-freebsd-questions@FreeBSD.ORG  Mon Nov  3 16:43:22 2008
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 19D6D106567B
	for <freebsd-questions@freebsd.org>;
	Mon,  3 Nov 2008 16:43:22 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl
	[IPv6:2001:4070:101:2::1])
	by mx1.freebsd.org (Postfix) with ESMTP id 3C4A18FC33
	for <freebsd-questions@freebsd.org>;
	Mon,  3 Nov 2008 16:43:20 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1])
	by wojtek.tensor.gdynia.pl (8.14.3/8.14.2) with ESMTP id mA3GhF4K010416;
	Mon, 3 Nov 2008 17:43:15 +0100 (CET)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from localhost (wojtek@localhost)
	by wojtek.tensor.gdynia.pl (8.14.3/8.14.2/Submit) with ESMTP id
	mA3GhDXZ010413; Mon, 3 Nov 2008 17:43:14 +0100 (CET)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Date: Mon, 3 Nov 2008 17:43:13 +0100 (CET)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: John Nielsen <lists@jnielsen.net>
In-Reply-To: <200811031009.15922.lists@jnielsen.net>
Message-ID: <20081103174229.T10405@wojtek.tensor.gdynia.pl>
References: <490F0881.2030809@gmail.com>
	<200811031009.15922.lists@jnielsen.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: Brent Clark <brentgclarklist@gmail.com>, freebsd-questions@freebsd.org
Subject: Re: raid tool
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: Mon, 03 Nov 2008 16:43:22 -0000

> If you replace "raid5" with "redundancy and n-1 capacity" then you could
> also look at geom_raid3, which is much simpler to configure than gvinum

and slower with random reads.

if he needs it for large files, then it's excellent.

> and also part of the base system. Additionally, FreeBSD 7.x has
> experimental support for ZFS (again in the base system and not in ports).
> That includes raidz, which is designed to have all of the good features
> of raid5 and none of the bad.

it gives performance of raid3 rather than raid5.