Ubuntu
apt-btrfs-snapshot package

  1. Bug #1773110
  2. Comment #1

Comment 1 for bug 1773110

Revision history for this message
Rolf Leggewie (r0lf) wrote :

Thomas, I believe something else is at play here.

Creating even a 100 Exabyte snapshot uses up almost no additional space. I create automatic snapshots every 10 minutes(!) for a btrfs that has only a 1GB (yes, GB not TB) internal flash drive (Igel thinclient) and that is filled 60%. I don't recommend doing this as it creates other problems, but they are not "100% disk usage".

That being said, it is especially bad to fill up a btrfs close to capacity as a btrfs needs room to breathe to operate properly.

Maybe https://btrfs.wiki.kernel.org/index.php/Problem_FAQ#I_get_.22No_space_left_on_device.22_errors.2C_but_df_says_I.27ve_got_lots_of_space is a good read for you to resolve the problem you were having.