Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264569AbUF1AWa (ORCPT ); Sun, 27 Jun 2004 20:22:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264571AbUF1AWa (ORCPT ); Sun, 27 Jun 2004 20:22:30 -0400 Received: from 203-217-29-35.perm.iinet.net.au ([203.217.29.35]:60120 "EHLO anu.rimspace.net") by vger.kernel.org with ESMTP id S264569AbUF1AW2 (ORCPT ); Sun, 27 Jun 2004 20:22:28 -0400 To: Petter Larsen Cc: ext3 , linux-kernel@vger.kernel.org Subject: Re: mode data=journal in ext3. Is it safe to use? In-Reply-To: <1088345837.5288.1.camel@pla.lokal.lan> (Petter Larsen's message of "Sun, 27 Jun 2004 16:17:17 +0200") References: <40FB8221D224C44393B0549DDB7A5CE83E31B1@tor.lokal.lan> <1087322976.1874.36.camel@pla.lokal.lan> <40D06C0B.7020005@techsource.com> <1087460983.2765.34.camel@pla.lokal.lan> <87wu26mto2.fsf@enki.rimspace.net> <1088345837.5288.1.camel@pla.lokal.lan> From: Daniel Pittman Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAFVBMVEUnIyatfG0aGBsMChBG NThoSkb52Lk0unwsAAACeElEQVR42l2UMZPbIBCF9zDqw4xRzYDTO5LTY92SWsyx11NE//8n5AGK LxMVtkcfb/fxWEzr61nWfx8aX57CnVUI/wPNRQH41Ycv4PGZJEZ/25pSjbKeXLwsTkrimArWeNdb eU+aNzVJkkJlJ78uzvu/IGqRImXnElHHkQ/BAzjUEBErPhXyS3CMtwvAQuhgjOzJGFOCd5p8e/Dp JOWS7HwchynK3QhtwgrwvXAqn+39Ua9818qBLAConbi/P6ot5Iiol6JiSZ51ACMNIAIodLJ0zccJ bKQGoKD4vN7EvMBO5AbgXCaxx6sUnXZTEZuSGc0RAXoMhUi6NlDBbJEdqbrY7L5ABogqOkfq3hXY tEx1NnIcNttyQ4qqKcqe0ANdcwPGbHB72tW2vFVT52YKoVBs8a6kI0t5M6fbw1iKEIRATCmlt3lk aGaTS3F9HxwLjI39/c4ZgHyLl5gZvnopA1fW7IgKW8SZ48jN6GEyfO3DFmmNI5/PEA1qkRs9HLOk ExgLLbkRoiMt3EtVjIQY63T8As98KrL5hp2No/Vaokg9JeitmakpFKF7qafEREwGx35cjlOSsXWD RLg/DeAnDNcTRKzvxLfBivx5wBiyv7YO1Ir5VivSPNzmK1JVRHqMBKKHp6NKls31Imi+NAnxOTzb eiflOhi3IfWt292HRfWVDQS/3g09MQ60qXVRWIfUGwjhh2h+ME9aPeIYxBYJrnbe9g0zqLegY5/D BqBc6nvC9b+Jv3B0uPodtEr2AvuF9zvxhhDfcW+bImR7wXlNMdBPxkWjfe0K/6hWuYlZT2ihMNUp 4r9kWcKvanWOj+2DAkeFE0xpD38AQw3cf9DOFKYAAAAASUVORK5CYII= Date: Mon, 28 Jun 2004 10:22:17 +1000 Message-ID: <873c4g1qh2.fsf@enki.rimspace.net> User-Agent: Gnus/5.110003 (No Gnus v0.3) XEmacs/21.4 (Security Through Obscurity, linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 924 Lines: 23 On 28 Jun 2004, Petter Larsen wrote: >>> We are using ext3 on a compact flash disk in an embedded device. So we >>> are not using RAID systems. >> >> Watch out - even with the internal wear leveling the CF disk will do, >> ext3 is still a pretty heavy filesystem to use there. > > Well, which filesystem would you then used for read-write on this CF? My recommendation would be to look at running your system out of memory, and writing back to flash on a scheduled basis, and at shutdown. That way the write load is minimized, but you still have a persistent store. Daniel -- Anyone who goes to a psychiatrist ought to have his head examined. -- Samuel Goldwyn - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/