Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756768AbYAHVD2 (ORCPT ); Tue, 8 Jan 2008 16:03:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751643AbYAHVDU (ORCPT ); Tue, 8 Jan 2008 16:03:20 -0500 Received: from ns.gsystems.sk ([62.176.172.50]:51725 "EHLO www.gsystems.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751612AbYAHVDT (ORCPT ); Tue, 8 Jan 2008 16:03:19 -0500 From: Ondrej Zary To: Andi Kleen Subject: Re: The ext3 way of journalling Date: Tue, 8 Jan 2008 22:03:08 +0100 User-Agent: KMail/1.9.7 Cc: Theodore Tso , Tuomo Valkonen , linux-kernel@vger.kernel.org References: <20080108181525.GL27800@mit.edu> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200801082203.11037.linux@rainbow-software.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1476 Lines: 37 On Tuesday 08 January 2008 21:51:53 Andi Kleen wrote: > Theodore Tso writes: > > Now, there are good reasons for doing periodic checks every N mounts > > and after M months. And it has to do with PC class hardware. (Ted's > > aphorism: "PC class hardware is cr*p"). > > If these reasons are good ones (some skepticism here) then the correct > way to really handle this would be to do regular background scrubbing > during runtime; ideally with metadata checksums so that you can actually > detect all corruption. > > But since fsck is so slow and disks are so big this whole thing > is a ticking time bomb now. e.g. it is not uncommon to require tens > of minutes or even hours of fsck time and some server that reboots > only every few months will eat that when it happens to reboot. > This means you get a quite long downtime. That's why I always do "tune2fs -c 0 -i 0" on any new filesystem. It probably should be default. > > -Andi > -- > 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/ -- Ondrej Zary -- 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/