From owner-freebsd-fs@FreeBSD.ORG  Mon Feb 11 16:24:38 2013
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id 87491468
 for <freebsd-fs@freebsd.org>; Mon, 11 Feb 2013 16:24:38 +0000 (UTC)
 (envelope-from takeda@takeda.tk)
Received: from chinatsu.takeda.tk (mail.takeda.tk [74.0.89.210])
 by mx1.freebsd.org (Postfix) with ESMTP id 22ED0CE1
 for <freebsd-fs@freebsd.org>; Mon, 11 Feb 2013 16:24:37 +0000 (UTC)
Received: from [10.186.227.129] (238.sub-70-197-64.myvzw.com [70.197.64.238])
 (authenticated bits=0)
 by chinatsu.takeda.tk (8.14.5/8.14.5) with ESMTP id r1BGEwFU041417
 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO);
 Mon, 11 Feb 2013 08:14:59 -0800 (PST)
 (envelope-from takeda@takeda.tk)
User-Agent: K-9 Mail for Android
In-Reply-To: <CAFYkXjk+uP=Y=x1dsbORcWuH8N7sAy4Zc1Zbb6GXhFjsG2BUnw@mail.gmail.com>
References: <CAFYkXjk+uP=Y=x1dsbORcWuH8N7sAy4Zc1Zbb6GXhFjsG2BUnw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain;
 charset=UTF-8
Content-Transfer-Encoding: 8bit
Subject: Re: how much reliable is UFS2+SU/J
From: Derek Kulinski <takeda@takeda.tk>
Date: Mon, 11 Feb 2013 08:14:49 -0800
To: CeDeROM <cederom@tlen.pl>, freebsd-fs@freebsd.org
Message-ID: <0affce66-f00b-4f16-9a57-4a3d71eedd99@email.android.com>
X-Virus-Scanned: clamav-milter 0.97.6 at chinatsu.takeda.tk
X-Virus-Status: Clean
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/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: Mon, 11 Feb 2013 16:24:38 -0000

CeDeROM <cederom@tlen.pl> wrote:

>Hello :-)
>
>Some time ago I have switched to UFS2+SU/J. However on a crash I have
>found some issues on a /home partition that SU/Journal seems to have
>missed. This caused applications to misbehave or use default
>configuration. Running "fsck" showed that filesystem is clean, but
>running "fsck -fy" found some issues. This happended at least three
>times in a short period of time, so I started to wonder how much
>reliable if UFS2+SU/J? Should I expect some fixes in this area or
>thing will stay like this forever for UFS2+SU/J?

When I tried it first myself I found corrupted data even after clean shutdown. I turned off journaling. It was SSD, so fsck is very fast. Later I learned that SU/J is a bad idea on SSD. Not sure if that's why I got corrupted disk each time or because it writes to disk more. 

-- 
Sent from my Android phone with K-9 Mail. Please excuse my brevity.