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 070A2139337 for ; Sun, 1 Aug 2021 03:47:20 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 07745E09B4; Sun, 1 Aug 2021 03:47:15 +0000 (UTC) Received: from icp-osb-irony-out5.external.iinet.net.au (icp-osb-irony-out5.external.iinet.net.au [203.59.1.221]) by pigeon.gentoo.org (Postfix) with ESMTP id 01DA6E0990 for ; Sun, 1 Aug 2021 03:47:12 +0000 (UTC) X-SMTP-MATCH: 0 IronPort-HdrOrdr: =?us-ascii?q?A9a23=3A2hF9lalaXpIn6qmoie4oMJX/MfjpDfIr3D?= =?us-ascii?q?Abv31ZSRFFG/Fw5Pre5MjzsiWE8Qr5OUtQ/+xoV5PwI080maQU3WBVB8bEYO?= =?us-ascii?q?CEghrNEGgB1/qA/9SIIUSXnYMw6U4jSclD4bbLYmSS4/yV3OD1KadE/DBZys?= =?us-ascii?q?qVuds=3D?= X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A2CNAADaGAZh/+hY69xaHAEBAQEBAQc?= =?us-ascii?q?BARIBAQQEAQFACYE9BgEBCwGDdwEBAYUwiQSHEgEBAQEBAQaBFC0DOAGECIY?= =?us-ascii?q?okHiBfAsBAQEBAQEBAQEJQQQBAYRYAoMAJjUIDgECBBUBAQEFAQEBAQEGAwG?= =?us-ascii?q?BJIV1hkIBAQEBAgEjDwEjKAsLGAICJgICVxMIAQGCbYJiBSCqGHqBMYEBhGi?= =?us-ascii?q?FHYEQKgGNbkN9gRCBPA+Cbz6DfoETgkqCZASDSDCBMDmBOJFBjmWdFYMxnjM?= =?us-ascii?q?GDwUmlU4IkRGGd7RTgT4jAXKBIE0fGYMlTxkOjisWFY4lNAEBAWcCBgEKAQE?= =?us-ascii?q?DCYlyXgEB?= X-IPAS-Result: =?us-ascii?q?A2CNAADaGAZh/+hY69xaHAEBAQEBAQcBARIBAQQEAQFAC?= =?us-ascii?q?YE9BgEBCwGDdwEBAYUwiQSHEgEBAQEBAQaBFC0DOAGECIYokHiBfAsBAQEBA?= =?us-ascii?q?QEBAQEJQQQBAYRYAoMAJjUIDgECBBUBAQEFAQEBAQEGAwGBJIV1hkIBAQEBA?= =?us-ascii?q?gEjDwEjKAsLGAICJgICVxMIAQGCbYJiBSCqGHqBMYEBhGiFHYEQKgGNbkN9g?= =?us-ascii?q?RCBPA+Cbz6DfoETgkqCZASDSDCBMDmBOJFBjmWdFYMxnjMGDwUmlU4IkRGGd?= =?us-ascii?q?7RTgT4jAXKBIE0fGYMlTxkOjisWFY4lNAEBAWcCBgEKAQEDCYlyXgEB?= X-IronPort-AV: E=Sophos;i="5.84,285,1620662400"; d="scan'208";a="390876195" Received: from 220-235-88-232.dyn.iinet.net.au (HELO mail.infra.localdomain) ([220.235.88.232]) by icp-osb-irony-out5.iinet.net.au with ESMTP; 01 Aug 2021 11:46:41 +0800 Received: from localhost (mail.infra.localdomain [127.0.0.1]) by mail.infra.localdomain (Postfix) with ESMTP id 071B8661 for ; Sun, 1 Aug 2021 11:46:41 +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 nYYZJfrbvbcY for ; Sun, 1 Aug 2021 11:46:02 +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: <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> <7e6b56a2-917f-4dd6-3599-722bca5162ca@iinet.net.au> From: William Kenworthy Message-ID: <7b00c8ee-b142-cd21-fc9e-77d272bb116e@iinet.net.au> Date: Sun, 1 Aug 2021 11:46:02 +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: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-AU X-Archives-Salt: 04128177-a1df-4581-bdf9-8f399a65fad8 X-Archives-Hash: 0f6e1388e1bd1df3e51a46eb67a227fe On 1/8/21 11:36 am, William Kenworthy wrote: > On 1/8/21 8:50 am, Frank Steinmetzger wrote: >> Am Sat, Jul 31, 2021 at 12:58:29PM +0800 schrieb William Kenworthy: >> >>> 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 >> So you are borg’ing a repo into a repo? I am planning on simply rsync’ing >> the borg directory from one external HDD to another. Hopefully SMR can cope >> with this adequatly. >> >> And you are storing several machines into a single repo? The docs say this >> is not supported officially. But I have one repo each for /, /home and data >> for both my PC and laptop. Using a wrapper script, I create snapshots that >> are named $HOSTNAME_$DATE in each repo. > Basicly yes: I use a once per hour snapshot of approximately 500Gib of > data on moosefs, plus borgbackups 3 times a day to individual repos on > moosefs for each host.  3 times a day, the latest snapshot is stuffed > into a borg repo on moosefs and the old  snapshots are deleted.  I > currently manually push all the repos into a borg repo on the USB3 SMR > drive once a day or so. > > 1. rsync (and cp etc.) are dismally slow on SMR - use where you have to, > avoid otherwise. > > forgot to mention 1a. borgbackup repos are not easily copy'able - each repo has a unique ID and copy'ing via rsync creates a duplicate, not a new repo with a new cache and metadata which depending on how you use can cause corruption/data loss.  Google it. BillK