From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id E89981381F3 for ; Mon, 3 Jun 2013 01:15:00 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id B5E34E09FD; Mon, 3 Jun 2013 01:14:52 +0000 (UTC) Received: from ore.jhcloos.com (ore.jhcloos.com [198.147.23.85]) (using TLSv1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id A15C1E09C5 for ; Mon, 3 Jun 2013 01:14:51 +0000 (UTC) Received: by ore.jhcloos.com (Postfix, from userid 10) id 8F7A41F3AA; Sun, 2 Jun 2013 21:14:50 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jhcloos.com; s=ore13; t=1370222090; bh=/ZKcyYoyfVFPZ6E+sMSqeDJYBABMSQURxq7T9Utdpxk=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=bPPyDLKGYIkhv4y5BYemCuOcHnx+XrpkaQKuhapEjhq6+dmuZ+35ycESQ0u/rrCJt JTtLMvnhh3hJBD+Onb+sITnTXsfdIt4wO9srGfeV9xvw853cuDoVRwkyQCRSFqda+w 9eJODEfHuenXw+7p8oCbc+hnGQ4W6G9aN6MNNOK6k+A== Received: by carbon.jhcloos.org (Postfix, from userid 500) id 1069E7342E; Mon, 3 Jun 2013 01:10:22 +0000 (UTC) From: James Cloos To: Alan Mackenzie Cc: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Ext3 FS File Size Limits In-Reply-To: <20130602142835.GC3401@acm.acm> (Alan Mackenzie's message of "Sun, 2 Jun 2013 14:28:35 +0000") References: <20130602045540.9e274421fd39338ae764a06f@gmail.com> <20130602130122.GB3401@acm.acm> <51ab5153.cdaeWPWIbd5YtZhM%Joerg.Schilling@fokus.fraunhofer.de> <20130602142835.GC3401@acm.acm> User-Agent: Gnus/5.130008 (Ma Gnus v0.8) Emacs/24.3.50 (gnu/linux) Face: iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAgMAAABinRfyAAAACVBMVEX///8ZGXBQKKnCrDQ3 AAAAJElEQVQImWNgQAAXzwQg4SKASgAlXIEEiwsSIYBEcLaAtMEAADJnB+kKcKioAAAAAElFTkSu QmCC Copyright: Copyright 2013 James Cloos OpenPGP: ED7DAEA6; url=http://jhcloos.com/public_key/0xED7DAEA6.asc OpenPGP-Fingerprint: E9E9 F828 61A4 6EA9 0F2B 63E7 997A 9F17 ED7D AEA6 Date: Sun, 02 Jun 2013 21:10:22 -0400 Message-ID: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain X-Hashcash: 1:28:130603:acm@muc.de::nkoC0ifkUywzrvLK:000000nez3T X-Hashcash: 1:28:130603:gentoo-user@lists.gentoo.org::XXGDZhdGbv0HFRkG:00000000000000000000000000000000DEwQr X-Archives-Salt: b9e6dc07-dddb-4cfc-845f-f7bce5648406 X-Archives-Hash: 40c643a73f34fb19452857697bc78f28 >>>>> "AM" == Alan Mackenzie writes: AM> Haven't a clue. I would have expected the maximum file size to be a AM> number of blocks, which makes it seem strange that doubling the block AM> size multiplies max file size by 16. Doubling the block size means that the structure specifying which blocks are in use by a given inode is twice as long. And the structure supports indirect blocks, which contain references to the actual blocks used by the file data. So you get one doubling for the size of the blocks, and another three for the number of blocks each file can use. Most ext3 and ext4 filesystems use 4096 octet blocks. -JimC -- James Cloos OpenPGP: 1024D/ED7DAEA6