From: Andreas Dilger Subject: Re: IRON filesystem papers - development of robust and fault tolerant filesystems Date: Fri, 22 Jun 2007 16:20:17 -0600 Message-ID: <20070622222017.GU5181@schatzie.adilger.int> References: <1823488273.20070622102830@mail.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: sftf Return-path: Received: from mail.clusterfs.com ([206.168.112.78]:43200 "EHLO mail.clusterfs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753741AbXFVWUU (ORCPT ); Fri, 22 Jun 2007 18:20:20 -0400 Content-Disposition: inline In-Reply-To: <1823488273.20070622102830@mail.ru> Sender: linux-ext4-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Jun 22, 2007 10:28 +0600, sftf wrote: > Hello! > I suggest developers to consider ext4 design from the point of view of these papers: > IRON FILE SYSTEMS - > http://www.cs.wisc.edu/wind/Publications/vijayan-thesis06.pdf > IMHO - very impressive paper and developers of close future filesystems can't > ignore these problems and solutions. > > and "Failure Analysis of SGI XFS File System" > http://www.cs.wisc.edu/~vshree/xfs.pdf Thanks, I think most of the ext4 developers have already read these papers. They are definitely of interest, and reducing e2fsck time is a very important area of development these days. We have already implemented the IRON FS journal checksumming feature, and this will go into ext4 shortly. There is lots of work needed in order to implement checksumming for the rest of the filesystem, so if you are interested to work on this please let us know. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.