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