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From: Frank Steinmetzger <Warp_7@gmx.de>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] [OT] SMR drives (WAS: cryptsetup close and device in use when it is not)
Date: Sun, 1 Aug 2021 23:38:02 +0200	[thread overview]
Message-ID: <YQcUOmhhm09SkDso@kern> (raw)
In-Reply-To: <7b00c8ee-b142-cd21-fc9e-77d272bb116e@iinet.net.au>

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Am Sun, Aug 01, 2021 at 11:46:02AM +0800 schrieb William Kenworthy:

> >> 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.

Yup. Today I did my (not so) weekly backup and rsynced the repo to the new
drive. After that I wanted to compare performance of my old 3 TB drive and
the new SMR one by deleting a snapshot from the repo on each drive. But Borg
objected on the second deletion, because “the cache was newer”. But that’s
okay. I actually like this, as this will prevent me from chaning two repos
in parallel which would make them incompatible.

-- 
Grüße | Greetings | Qapla’
Please do not share anything from, with or about me on any social network.

Fat stains become like new if they are regularly treated with butter.

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  reply	other threads:[~2021-08-01 21:38 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-14  4:50 [gentoo-user] cryptsetup close and device in use when it is not Dale
2021-06-15 13:48 ` Ramon Fischer
2021-06-15 14:21   ` Dale
2021-06-15 14:52     ` Jack
2021-06-15 15:26       ` Dale
2021-06-15 19:04         ` Ramon Fischer
2021-06-21  4:18         ` Dale
2021-06-21  4:49           ` Dale
2021-06-21  5:41             ` Dale
2021-06-21  5:59               ` Dale
2021-06-28  3:35                 ` Dale
2021-07-05  3:19                   ` Dale
2021-07-06 18:40                     ` Ramon Fischer
2021-07-06 19:43                       ` Dale
2021-07-07 14:48                       ` Dr Rainer Woitok
2021-07-07 18:08                         ` Dale
2021-07-08  8:20                           ` Ramon Fischer
2021-07-12  8:31                             ` Dale
2021-07-12 13:14                               ` Ramon Fischer
2021-08-02 13:33                                 ` Dale
2021-08-09 13:38                                   ` Ramon Fischer
2021-09-19 11:55                                     ` Dale
2021-07-25 20:29                           ` Frank Steinmetzger
2021-07-25 23:10                             ` Dale
2021-07-26 21:00                               ` Frank Steinmetzger
2021-07-26 22:48                                 ` Dale
2021-07-29 16:46                                 ` Wols Lists
2021-07-29 20:55                                   ` [gentoo-user] [OT] SMR drives (WAS: cryptsetup close and device in use when it is not) Frank Steinmetzger
2021-07-29 21:31                                     ` Frank Steinmetzger
2021-07-30 12:48                                       ` Frank Steinmetzger
2021-07-30  5:14                                     ` William Kenworthy
2021-07-30 14:29                                       ` Rich Freeman
2021-07-30 16:50                                         ` antlists
2021-07-30 18:38                                           ` Rich Freeman
2021-07-31  3:14                                         ` William Kenworthy
2021-07-31  3:50                                           ` Wols Lists
2021-07-31  4:58                                             ` William Kenworthy
2021-07-31 12:12                                               ` Rich Freeman
2021-08-01  0:41                                                 ` Frank Steinmetzger
2021-08-01  0:56                                                   ` Rich Freeman
2021-07-31 16:38                                               ` antlists
2021-08-01  0:50                                               ` Frank Steinmetzger
2021-08-01  3:36                                                 ` William Kenworthy
2021-08-01  3:46                                                   ` William Kenworthy
2021-08-01 21:38                                                     ` Frank Steinmetzger [this message]
2021-08-02  5:38                                                       ` William Kenworthy
2021-08-02 21:52                                                         ` Frank Steinmetzger
2021-08-02 23:10                                                           ` William Kenworthy
2021-08-03  8:18                                                             ` Frank Steinmetzger
2021-08-05 20:40                                                               ` Frank Steinmetzger
2021-08-06  7:22                                                                 ` William Kenworthy
2021-08-01 21:55                                                   ` Frank Steinmetzger
2021-08-02  6:12                                                     ` William Kenworthy
2021-08-02 22:03                                                       ` Frank Steinmetzger
2021-08-02 23:35                                                         ` William Kenworthy
2021-08-01  3:41                                                 ` William Kenworthy
2021-08-01 21:41                                                   ` Frank Steinmetzger
2021-07-31 12:21                                             ` Rich Freeman
2021-07-31 12:59                                               ` William Kenworthy
2021-07-31 13:30                                                 ` Rich Freeman
2021-08-01  3:05                                                   ` William Kenworthy
2021-08-01 11:37                                                     ` Rich Freeman
2021-07-31  5:23                                           ` William Kenworthy
2021-06-15 17:48     ` [gentoo-user] Re: cryptsetup close and device in use when it is not Remy Blank

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