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Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...)

From Felix Miata <mrmazda@earthlink.net>
Newsgroups linux.debian.user
Subject Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...)
Date 2019-04-13 19:10 +0200
Message-ID <xMuk9-3We-1@gated-at.bofh.it> (permalink)
References <xM5ON-5p0-3@gated-at.bofh.it> <xMc3U-UC-5@gated-at.bofh.it> <xMsV3-2VN-5@gated-at.bofh.it>
Organization less than infinite

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Anders Andersson composed on 2019-04-13 17:31 (UTC+0200):

> Felix Miata wrote:

>> Because of its snapshotting, BTRFS requires considerably more space than older
>> filesystems, as much as double.

> A btrfs snapshot takes approximately zero space. Where did you get
> this idea from? 

(not an exhaustive list)

1: "Disk Space Full Because of Snapper" on https://en.opensuse.org/SDB:BTRFS

2: Since 2015, BTRFS has been the default / filesystem on openSUSE, which
recommends minimum / filesystem size of 20GB for EXT4, compared to 40GB for BTRFS.

3: Much more common / filesystem freespace exhausted threads on mailing lists and
web forums from BTRFS users compared to EXT4 users, with the usual recommendation
to delete one or more snapshots to free space.

4: https://btrfs.wiki.kernel.org/index.php/FAQ#Help.21_I_ran_out_of_disk_space.21

5: https://btrfs.wiki.kernel.org/index.php/FAQ#Why_is_free_space_so_complicated.3F

6:
https://www.linuxquestions.org/questions/linux-containers-122/docker-on-btrfs-using-much-space-in-var-lib-docker-btrfs-4175622037/#post5811463
-- 
Evolution as taught in public schools is religion, not science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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Thread

New laptop: need advice on choice of file system types Tom Browder <tom.browder@gmail.com> - 2019-04-12 17:00 +0200
  Re: New laptop: need advice on choice of file system types Dan Ritter <dsr@randomstring.org> - 2019-04-12 18:50 +0200
    Re: New laptop: need advice on choice of file system types Tom Browder <tom.browder@gmail.com> - 2019-04-12 19:20 +0200
      Re: New laptop: need advice on choice of file system types Brian <ad44@cityscape.co.uk> - 2019-04-12 23:40 +0200
      Re: New laptop: need advice on choice of file system types Dan Ritter <dsr@randomstring.org> - 2019-04-13 00:10 +0200
    Re: New laptop: need advice on choice of file system types Default User <hunguponcontent@gmail.com> - 2019-04-12 20:30 +0200
      Re: New laptop: need advice on choice of file system types Dan Ritter <dsr@randomstring.org> - 2019-04-13 00:10 +0200
        Re: New laptop: need advice on choice of file system types Default User <hunguponcontent@gmail.com> - 2019-04-13 02:30 +0200
    Re: New laptop: need advice on choice of file system types Thomas D Dial <tdial@acm.org> - 2019-04-13 00:10 +0200
      Re: New laptop: need advice on choice of file system types Curt <curty@free.fr> - 2019-04-13 10:10 +0200
        Re: New laptop: need advice on choice of file system types Dan Ritter <dsr@randomstring.org> - 2019-04-13 15:30 +0200
  Re: New laptop: need advice on choice of file system types Felix Miata <mrmazda@earthlink.net> - 2019-04-12 23:40 +0200
    Re: New laptop: need advice on choice of file system types Anders Andersson <pipatron@gmail.com> - 2019-04-13 17:40 +0200
      Re: BTRFS snapshot space consumption (was: New laptop: need advice on  choice...) Felix Miata <mrmazda@earthlink.net> - 2019-04-13 19:10 +0200
        Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...) deloptes <deloptes@gmail.com> - 2019-04-13 23:20 +0200
        Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...) Peter Wiersig <peter@friesenpeter.de> - 2019-04-14 02:40 +0200
          Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...) Peter Wiersig <peter@friesenpeter.de> - 2019-04-14 02:50 +0200
            Re: BTRFS snapshot space consumption (was: New laptop: need advice on  choice...) Matthew Crews <mailinglists@mattcrews.com> - 2019-04-14 03:00 +0200
              Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...) Peter Wiersig <peter@friesenpeter.de> - 2019-04-14 15:10 +0200
                Re: BTRFS snapshot space consumption (was: New laptop: need advice  on choice...) Dan Ritter <dsr@randomstring.org> - 2019-04-15 01:10 +0200
                Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...) Peter Wiersig <peter@friesenpeter.de> - 2019-04-15 05:20 +0200
        Re: BTRFS snapshot space consumption (was: New laptop: need advice on choice...) Anders Andersson <pipatron@gmail.com> - 2019-04-14 10:30 +0200
    Re: New laptop: need advice on choice of file system types Jonathan Dowland <jmtd@debian.org> - 2019-04-15 16:30 +0200
      Re: New laptop: need advice on choice of file system types Felix Miata <mrmazda@earthlink.net> - 2019-04-15 19:40 +0200
        Re: New laptop: need advice on choice of file system types Jonathan Dowland <jmtd@debian.org> - 2019-04-16 10:20 +0200
          Re: New laptop: need advice on choice of file system types Felix Miata <mrmazda@earthlink.net> - 2019-04-16 21:30 +0200
  Re: New laptop: need advice on choice of file system types Anders Andersson <pipatron@gmail.com> - 2019-04-13 17:50 +0200
  Re: New laptop: need advice on choice of file system types Jonathan Dowland <jmtd@debian.org> - 2019-04-15 16:40 +0200
  Re: New laptop: need advice on choice of file system types Tom Browder <tom.browder@gmail.com> - 2019-04-15 16:40 +0200
    Re: New laptop: need advice on choice of file system types Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-04-16 20:40 +0200
      Re: New laptop: need advice on choice of file system types Jonas Smedegaard <jonas@jones.dk> - 2019-04-16 22:00 +0200
      Re: New laptop: need advice on choice of file system types Jonathan Dowland <jmtd@debian.org> - 2019-04-17 12:40 +0200

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