I second this. Even though it's an out of tree project, ZFS on Linux has always been much much more stable and reliable than Btrfs, as far as my experience goes

I second this. Even though it's an out of tree project, ZFS on Linux has always been much much more stable and reliable than Btrfs, as far as my experience goes. The only time I really managed to screw a ZFS pool was because of the buggy controller on a dirty cheap SSD.