From: Frank Mayhar Subject: Re: Concise description of disk layout? Date: Fri, 17 Apr 2009 18:30:44 +0000 (UTC) Message-ID: References: <1239838392.12688.4.camel@bobble.smo.corp.google.com> <20090416002809.GG21586@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To: linux-ext4@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:37785 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757484AbZDQSfH (ORCPT ); Fri, 17 Apr 2009 14:35:07 -0400 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1Lusty-0003ng-Ol for linux-ext4@vger.kernel.org; Fri, 17 Apr 2009 18:35:02 +0000 Received: from 207.47.98.129.static.nextweb.net ([207.47.98.129]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 17 Apr 2009 18:35:02 +0000 Received: from fmayhar by 207.47.98.129.static.nextweb.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 17 Apr 2009 18:35:02 +0000 Sender: linux-ext4-owner@vger.kernel.org List-ID: Sorry for the late reply. On Wed, 15 Apr 2009 20:28:09 -0400, Theodore Tso wrote: > On Wed, Apr 15, 2009 at 04:33:12PM -0700, Frank Mayhar wrote: >> Does such a thing exist anywhere? I.e. "inodes are here, data blocks >> are here, etc., etc." I need to come up with something like this but >> if one already exists that would save a lot of time. > > At what level? You mean something like this: > > http://e2fsprogs.sourceforge.net/ext2intro.html > > but updated for ext4? Yeah, the "Physical Structure" section. > Hmm, not really. Fragments of what's there can be found in various > slide decks and papers, here: > > http://ext4.wiki.kernel.org/index.php/Publications Sigh. Okay, I'll dig through those. > If you'd like to write up something comprehensive for the ext4 wiki, > that would be great. :-) I'm going to have to come up with something, although it probably won't be comprehensive. With luck I'll have time to make it suitable for public consumption. :-) -- Frank Mayhar fmayhar@google.com