On Sat, Feb 1, 2025 at 7:15 PM Dale <rdalek1...@gmail.com> wrote: > > My thinking, even if I went to 95%, it should be OK given my usage. It > might even be OK at 99%. Thing is, I know at some point, something is > going to happen. I just been wondering what that point is and what it > will do. Oh, I do use ext4.
If you're using ext4 and this is a dedicated filesystem that no critical applications need to be able to write to, then there really are no bad consequences for filling the entire disk. With ext4 if you want to get the same back you just need to rm some file. Really the only downside for you in this use case is not being able to cram something onto it when you want to. Now, if you were running btrfs or cephfs or some other exotic filesystems, then it would be a whole different matter, as those struggle to recover space when they get too full. Something like ceph also trades free space for failover space if you lose a disk, so if you want the cluster to self-heal you need free space for it to work with (and you want it to still be 85% free or so even after losing a disk), -- Rich
