From owner-freebsd-questions@freebsd.org Thu Mar 16 20:37:30 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 99D51D0F650 for ; Thu, 16 Mar 2017 20:37:30 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) Received: from nm27-vm6.bullet.mail.ir2.yahoo.com (nm27-vm6.bullet.mail.ir2.yahoo.com [212.82.97.57]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0E6F71771 for ; Thu, 16 Mar 2017 20:37:29 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s2048; t=1489696641; bh=zUb4XoyyGkRUIQse94Pg6ASi26alMcJtyk1Nb6RgVYI=; h=Date:From:To:Subject:In-Reply-To:References:From:Subject; b=qmUDsGUNaDMRK/M59mZ6hQ5MRpdYULBH5HUVxZv4piNQkm5WuHPuuX1poDGJtFuKZw90R/8fdjCTFL71h+TQoMEv20GrovDS5gqPB8OUKBRLofZVulvVMWqxarexfNU1UvHyVumvz/qWbf8zXyyBbPqMy8J/1BPYrCPZMfAp6yjaBlddpvTNk7cvXMjH2J5Fr6/B2uFWig8+9CAKb+KzFQazP8AoByFadjZ6LR2yroDdKI2wghZFJP1tfTrmtvw4sTCEl/u4l1YJASrUFUs/ZJeWF6Bp9K5KDPJhDoqg5/P2OjSTNZYL/G9MUVQTt3TRUiaA+nuRNwUFUJiIeeEk1w== Received: from [212.82.98.57] by nm27.bullet.mail.ir2.yahoo.com with NNFMP; 16 Mar 2017 20:37:21 -0000 Received: from [46.228.39.92] by tm10.bullet.mail.ir2.yahoo.com with NNFMP; 16 Mar 2017 20:37:21 -0000 Received: from [127.0.0.1] by smtp129.mail.ir2.yahoo.com with NNFMP; 16 Mar 2017 20:37:21 -0000 X-Yahoo-Newman-Id: 738437.38280.bm@smtp129.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: mQzixmAVM1lXI4RtjPAg_FNUijztN6N8UFMyyHqbiLTKGVR I_J5oNRzz8Bqg_SiftvXJYmrExaixpxKZvslHvjCE0MSA7_Dow7VtsNdHNsV bilGmab3IGtnSOc0SymGlMn9BRJyxoloQcTTn3KcvllSksSeQeWn3XBqY_RF qWjriBN2O6mteRyc4HzMHbU37Otboj5DfTPlkUJrHpJUYjdIkInu4dZQpawF GogeUw.Sj52Nh18rCTLFnoBqDWsFE5.u_J5MgFX72SoTS7w0iDW01woTd..o z4UdZbTPEv076WWG7JSUzcLg5c7gHVkfXfk_FT9zoYCpWDJgO9fVrS5h4H_p b45BJ1.HZKKOr78HJqnMckdyUc1zyadv7xRCMbIw0QQTuWVGtzqGIc804Tre EvDByMZiHBKqWGWPRvuwD6ZnitjWBEa3QQRrDPRMgLnrUScZP2HXhvZu1nkR 1DB2p9qQ.umL5CemisL7hNqgXNHKao7PkYea1p0s_F9e_zlsrdoot36tgTJ_ _0dhZmN70sAUt1nRDq2zA9QMJIsz9ISz_5Qmen.7nwkpocUibVe77Qahqq6e 2wrsIqAUASHe8OPG9kc2mavD7d.VlLw-- X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Date: Thu, 16 Mar 2017 21:37:22 +0100 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: Re: bootable ext. USB SSD for backup Message-ID: <20170316213722.139560c8@archlinux.localdomain> In-Reply-To: <92024f3c-2ab3-1741-97de-36455ca56b7e@gmx.net> References: <20170316194612.GA1748@c720-r314251> <33953.128.135.52.6.1489694167.squirrel@cosmo.uchicago.edu> <92024f3c-2ab3-1741-97de-36455ca56b7e@gmx.net> X-Mailer: Claws Mail 3.14.1-19-ge7206c0 (GTK+ 2.24.31; x86_64-arch-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Mar 2017 20:37:30 -0000 On Thu, 16 Mar 2017 21:11:53 +0100, Martin S. Weber wrote: >Toshiba is clearly underselling the disk. I don't think so, I suspect that some bytes are reserved to compensate borked memory locations. [rocketmouse@archlinux ~]$ sudo smartctl -a /dev/sda | head -9 smartctl 6.5 2016-05-07 r4318 [x86_64-linux-4.9.13-rt12-1-rt-persianrug] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Device Model: TOSHIBA-TL100 Serial Number: Y69B703NKKEU LU WWN Device Id: 5 00080d c0061b7c8 Firmware Version: SBFZ10.3 User Capacity: 240,057,409,536 bytes [240 GB] GParted mentions 223.57 GiB * 1024 * 1024 = 234,430,136.32 bytes. MBR, file system entries might take some space, too. OTOH the complete capacity shouldn't shrink ;). Regards, Ralf