More often than not if I delete a couple of old snapshots in Timeshift I start losing free space like mad. For example a while ago I deleted 30 snapshots and the free space indicator went from 70G to 27G. Today I deleted 3 snapshots, it went from 59G to 44G.
Balancing works to get back some space, but it’s far from how much space I should be having. (though unless I run “btrfs balance start -m /” 2-3 times in a row it doesn’t do much)
I tried “btrfs balance start -dusage=5 /” it did not do anything, I also tried balancing in btrfs-assistant, but my free space indicator went down from 40G to 1.7G at the time.
What could be causing this? How normal is this behavior?
(Balancing frequently is clearly not great for ssd wear & this only started happening very recently, had not had problems before. What is going on?)
Just be clear, which indicator are you looking at to check your free space?
What timeshift, thunar & even btrfs-assistant says.
I would expect free space to be close to total space minus used space. (I don’t have any snapshots older than today, nor do I have bugged snapshots that Timeshift failed to delete, not as far as I can see at any rate)
Thanks a lot for this comment, this is giving me a peace of mind.
Mayhaps I will boot into the LTS kernel to delete snapshots from now on. In fact I have 30 or so that I need to delete right now, but I’ve been procrastinating, knowing that I would need to run balancing 2-3 times afterwards…
edit: This worked. I deleted the snapshots on the LTS kernel & regained the lost space.
(they broke so many things in the 6.7 kernel, omg)