Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756811AbZADNgw (ORCPT ); Sun, 4 Jan 2009 08:36:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751822AbZADNgm (ORCPT ); Sun, 4 Jan 2009 08:36:42 -0500 Received: from ik-out-1112.google.com ([66.249.90.180]:1412 "EHLO ik-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751678AbZADNgl (ORCPT ); Sun, 4 Jan 2009 08:36:41 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=WOIQskAoJK0Ftd//o4aodR3nQoxY8qAW04hRfXqbNLlStSk9pjx7N4cbmNg2BUyexP PH7xaRS836MrC+QMb9dxlyJlQSHLmFXbFAS1kTjkwLDjRBt2yAHMFZGIAAfqK3uqGgiI F8DguafPEFd+O6MlCWppw9h+sRx8QcSmr25bM= Message-ID: <4960BB2D.3060000@gmail.com> Date: Sun, 04 Jan 2009 18:35:41 +0500 From: "Alexander E. Patrakov" User-Agent: Mozilla/5.0 (X11; U; Linux i686; ru-RU; rv:1.8.1.19) Gecko/20081226 SeaMonkey/1.1.14 MIME-Version: 1.0 To: Pavel Machek CC: kernel list , Andrew Morton , tytso@mit.edu, mtk.manpages@gmail.com, rdunlap@xenotime.net, linux-doc@vger.kernel.org, Alan Cox Subject: Re: document ext3 requirements References: <20090103123813.GA1512@ucw.cz> In-Reply-To: <20090103123813.GA1512@ucw.cz> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1030 Lines: 24 Pavel Machek wrote: [CC: Alan Cox because of his reply in the "XFS internal error" thread] > Using ext3 is only safe if storage subsystem meets certain > criteria. Document those. Thanks for this patch. However, after reading this, I have a stupid question: which file system should I use if I had to reinstall my computers from scratch now? Ext3 means either hardware that supports barriers (not sure how to check, and anyway I have to use encryption on the work laptop due to the corporate policy) or disabling write cache (but, as Alan Cox said, this shortens the lifespan of the disk). Does this requirement apply to other journaling filesystems? Do I need journaling at all, given that I have an UPS on my desktop and a battery in the laptop? -- Alexander E. Patrakov -- 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/