From owner-freebsd-fs@FreeBSD.ORG  Tue Jul  8 20:42:28 2008
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 6D4E71065674
	for <freebsd-fs@freebsd.org>; Tue,  8 Jul 2008 20:42:28 +0000 (UTC)
	(envelope-from roberto@keltia.freenix.fr)
Received: from keltia.freenix.fr (keltia.freenix.org
	[IPv6:2001:660:330f:f820:213:72ff:fe15:f44])
	by mx1.freebsd.org (Postfix) with ESMTP id 181878FC18
	for <freebsd-fs@freebsd.org>; Tue,  8 Jul 2008 20:42:28 +0000 (UTC)
	(envelope-from roberto@keltia.freenix.fr)
Received: from localhost (localhost [127.0.0.1])
	by keltia.freenix.fr (Postfix/TLS) with ESMTP id 3B06D398A0
	for <freebsd-fs@freebsd.org>; Tue,  8 Jul 2008 22:42:27 +0200 (CEST)
X-Virus-Scanned: amavisd-new at keltia.freenix.fr
Received: from keltia.freenix.fr ([127.0.0.1])
	by localhost (keltia.freenix.fr [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id wS3YOk0KKo+F for <freebsd-fs@freebsd.org>;
	Tue,  8 Jul 2008 22:42:26 +0200 (CEST)
Received: by keltia.freenix.fr (Postfix/TLS, from userid 101)
	id DC4D539889; Tue,  8 Jul 2008 22:42:26 +0200 (CEST)
Date: Tue, 8 Jul 2008 22:42:26 +0200
From: Ollivier Robert <roberto@keltia.freenix.fr>
To: freebsd-fs@freebsd.org
Message-ID: <20080708204226.GB97977@keltia.freenix.fr>
References: <bd9320b30807072315x105cf058tf9f952f0f5bb2a6a@mail.gmail.com>
	<20080708100701.57031cda@twoflower.in.publishing.hu>
	<bd9320b30807080131j5e0e02a4y3231d7bfa1738517@mail.gmail.com>
	<4873C4FA.2020004@FreeBSD.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <4873C4FA.2020004@FreeBSD.org>
X-Operating-System: MacOS X / Macbook Pro - FreeBSD 7 / Dell D820 SMP
User-Agent: Mutt/1.5.17 (2007-11-01)
Subject: Re: Thinking of using ZFS/FBSD for a backup system
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 08 Jul 2008 20:42:28 -0000

According to Kris Kennaway:
> (ports-i386:~)> cat /boot/loader.conf
> vfs.zfs.prefetch_disable=1
> vm.kmem_size=1572864000

Hvae you tried w/o the prefetch_disable tunable?
-- 
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr
Darwin sidhe.keltia.net Version 9.2.0: Tue Feb  5 16:13:22 PST 2008; i386