From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 41EDE1381F3 for ; Sat, 31 Jul 2021 04:59:37 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 27F25E08A0; Sat, 31 Jul 2021 04:59:30 +0000 (UTC) Received: from icp-osb-irony-out8.external.iinet.net.au (icp-osb-irony-out8.external.iinet.net.au [203.59.1.225]) by pigeon.gentoo.org (Postfix) with ESMTP id 2CAC6E0814 for ; Sat, 31 Jul 2021 04:59:27 +0000 (UTC) X-SMTP-MATCH: 0 IronPort-HdrOrdr: =?us-ascii?q?A9a23=3AIjUbvKxRAjRj1c5zXnvvKrPw8L1zdoMgy1?= =?us-ascii?q?knxilNoHtuA6mlfqGV7ZYmPHrP4wr5N0tNpTntAsa9qArnhOJICOsqXItKLT?= =?us-ascii?q?OW21dAd7sSlbcKqgeIc0fDH4ZmuJuIGJIfNDSfNzZHZMzBkXCF+0RK+qjgzE?= =?us-ascii?q?g57t2uqEuE3mpRGsVdBvBCe3ym+tIcfng8OXIcf6Dsm/Z6mw=3D=3D?= X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A2AeEQC81wRh/+hY69xaHQEBAQEJARI?= =?us-ascii?q?BBQUBQAmBUAKBdIICAQEBhTCJBIcTAQEBAQaBFDA4AYQIhiiSdAsBAQEBAQE?= =?us-ascii?q?BAQEJQQQBAYRYAoMAJjgTAQIEFQEBAQUBAQEBAQYDAYEkhXVAARABBAGFbAE?= =?us-ascii?q?FIw8BIxkaCxgCAiYCAlcTCAEBgm2CYiWrXYExgQGEaIUggRAqAY1uQ32BEIE?= =?us-ascii?q?8DAOCbz6DfoETgkqCZASFXgSBOJFSjlSdFYMxnjMGDwUmlU4IkRGGd7RTgT4?= =?us-ascii?q?5gX1NHxmDJU8ZDlaNUgMWFY4lNAEBAWcCBgEKAQEDCYYQgRKDLgEB?= X-IPAS-Result: =?us-ascii?q?A2AeEQC81wRh/+hY69xaHQEBAQEJARIBBQUBQAmBUAKBd?= =?us-ascii?q?IICAQEBhTCJBIcTAQEBAQaBFDA4AYQIhiiSdAsBAQEBAQEBAQEJQQQBAYRYA?= =?us-ascii?q?oMAJjgTAQIEFQEBAQUBAQEBAQYDAYEkhXVAARABBAGFbAEFIw8BIxkaCxgCA?= =?us-ascii?q?iYCAlcTCAEBgm2CYiWrXYExgQGEaIUggRAqAY1uQ32BEIE8DAOCbz6DfoETg?= =?us-ascii?q?kqCZASFXgSBOJFSjlSdFYMxnjMGDwUmlU4IkRGGd7RTgT45gX1NHxmDJU8ZD?= =?us-ascii?q?laNUgMWFY4lNAEBAWcCBgEKAQEDCYYQgRKDLgEB?= X-IronPort-AV: E=Sophos;i="5.84,283,1620662400"; d="scan'208";a="377250653" Received: from 220-235-88-232.dyn.iinet.net.au (HELO mail.infra.localdomain) ([220.235.88.232]) by icp-osb-irony-out8.iinet.net.au with ESMTP; 31 Jul 2021 12:59:25 +0800 Received: from localhost (mail.infra.localdomain [127.0.0.1]) by mail.infra.localdomain (Postfix) with ESMTP id 9D74FF59 for ; Sat, 31 Jul 2021 12:59:24 +0800 (AWST) X-Virus-Scanned: amavisd-new at localdomain Received: from mail.infra.localdomain ([127.0.0.1]) by localhost (mail.infra.localdomain [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id R2hffDvGGexG for ; Sat, 31 Jul 2021 12:58:30 +0800 (AWST) Subject: Re: [gentoo-user] [OT] SMR drives (WAS: cryptsetup close and device in use when it is not) To: gentoo-user@lists.gentoo.org References: <9946c2eb-bb5c-a9c0-ced9-1ac269cd69a0@gmail.com> <6ecbf2d6-2c6f-3f66-5eee-f4766d5e5254@gmail.com> <24805.48814.331408.860941@tux.local> <5483630c-3cd1-bca2-0a6d-62bb85a5adc6@gmail.com> <96fc901a-2ce4-0ea0-0ed1-1c529145c0e9@gmail.com> <6102DB58.7040103@youngman.org.uk> <56d64f52-1b9a-1309-c720-06bb63c9f80a@iinet.net.au> <7a8c52c3-4c96-89ac-ace0-6eb4b8f1401f@iinet.net.au> <6104C897.5010505@youngman.org.uk> From: William Kenworthy Message-ID: <7e6b56a2-917f-4dd6-3599-722bca5162ca@iinet.net.au> Date: Sat, 31 Jul 2021 12:58:29 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 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 X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 In-Reply-To: <6104C897.5010505@youngman.org.uk> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-AU X-Archives-Salt: 3e7fdb81-7339-4af2-b8b8-60bd71d3e9c7 X-Archives-Hash: f9f23ea385050f14bdea1e80a6f2c0f2 On 31/7/21 11:50 am, Wols Lists wrote: > On 31/07/21 04:14, William Kenworthy wrote: >> (seagate lists it as a 5Tb drive managed SMR) >> >> It was sold as a USB3 4Tb desktop expansion drive, fdisk -l shows "Disk >> /dev/sde: 3.64 TiB, 4000787029504 bytes, 7814037167 sectors" and Seagate >> is calling it 5Tb - marketing! > Note that it's now official, TB is decimal and TiB is binary, so a 4TB > drive being 3.64TiB makes sense. TB is 10e9, while TiB is 2e30. > > btw, you're scrubbing over USB? Are you running a raid over USB? Bad > things are likely to happen ... > > Cheers, > Wol > I am amused in a cynical way at disk manufacturers using decimal values ... Its not raid, just a btrfs single on disk (no partition).  Contains a single borgbackup repo for an offline backup of all the online borgbackup repo's I have for a 3 times a day backup rota of individual machines/data stores - I get an insane amount of de-duplication that way for a slight decrease in conveniance! BillK