Date: Thu, 16 Mar 2017 21:37:22 +0100 From: Ralf Mardorf <ralf.mardorf@rocketmail.com> 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>
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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
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