From owner-freebsd-questions@FreeBSD.ORG  Wed Dec  3 14:21:27 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 3F3771065676;
	Wed,  3 Dec 2008 14:21:27 +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 AB0D58FC1A;
	Wed,  3 Dec 2008 14:21:25 +0000 (UTC)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1])
	by wojtek.tensor.gdynia.pl (8.14.3/8.14.3) with ESMTP id mB3ELJJg047304;
	Wed, 3 Dec 2008 15:21:19 +0100 (CET)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Received: from localhost (wojtek@localhost)
	by wojtek.tensor.gdynia.pl (8.14.3/8.14.3/Submit) with ESMTP id
	mB3ELJxE047301; Wed, 3 Dec 2008 15:21:19 +0100 (CET)
	(envelope-from wojtek@wojtek.tensor.gdynia.pl)
Date: Wed, 3 Dec 2008 15:21:19 +0100 (CET)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Ivan Voras <ivoras@freebsd.org>
In-Reply-To: <gh63mq$sv0$1@ger.gmane.org>
Message-ID: <20081203152044.I47300@wojtek.tensor.gdynia.pl>
References: <B6DC69C36AB645CAB7E1237397B6BC41@mickey>
	<20081203134633.57adc024@baby-jane>
	<20081203145731.U47196@wojtek.tensor.gdynia.pl>
	<gh63mq$sv0$1@ger.gmane.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Cc: freebsd-questions@freebsd.org
Subject: Re: Best Journaling File System - ZFS/???
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: Wed, 03 Dec 2008 14:21:27 -0000

>>> I use gjournal since FreeBSD 7.0 and it seems to work fine.
>> is it really smart enough to not write everything twice or am i wrong?
>
> It writes everything twice :)
>
> (but every journaling system has to write something twice)

there is a big difference between something (metadata, short data 
writes and everything (like huge file data)