From: Michael Rubin Subject: Re: EXT3 way too happy with write errors Date: Thu, 18 Dec 2008 10:29:09 -0800 Message-ID: <532480950812181029k1baf8264y82fb6d9760fe05f8@mail.gmail.com> References: <20081015002256.GD25662@hostway.ca> <20081218170714.GA6797@atrey.karlin.mff.cuni.cz> <20081218171825.GD20515@hostway.ca> <20081218172759.GE13580@duck.suse.cz> <20081218174921.GF20515@hostway.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Jan Kara , Hidehiro Kawai , Mike Snitzer , Andreas Dilger , linux-ext4@vger.kernel.org To: Simon Kirby Return-path: Received: from smtp-out.google.com ([216.239.45.13]:37207 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751949AbYLRS3N (ORCPT ); Thu, 18 Dec 2008 13:29:13 -0500 Received: from zps38.corp.google.com (zps38.corp.google.com [172.25.146.38]) by smtp-out.google.com with ESMTP id mBIITC3L023773 for ; Thu, 18 Dec 2008 10:29:12 -0800 Received: from el-out-1112.google.com (elem34.prod.google.com [10.126.164.34]) by zps38.corp.google.com with ESMTP id mBIIT99F004439 for ; Thu, 18 Dec 2008 10:29:10 -0800 Received: by el-out-1112.google.com with SMTP id m34so132260ele.25 for ; Thu, 18 Dec 2008 10:29:09 -0800 (PST) In-Reply-To: <20081218174921.GF20515@hostway.ca> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Thu, Dec 18, 2008 at 9:49 AM, Simon Kirby wrote: > Not aborting on data write error: User loses data. File system gets very > confused. > > What am I missing? I can think of certain situations when companies may care about getting most of the data to disk and clean it up later. Datacenters may be replicating the data to many spindles and may sometimes care about throughput as much as possible. So lossy data could be preferred to complete data. Not saying this is always preferred but I can see a use case. mrubin