Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 3.8G 0 3.8G 0% /dev tmpfs tmpfs 781M 3.7M 778M 1% /run /dev/sda3 btrfs 28G 8.0G 20G 29% / tmpfs tmpfs 3.9G 60M 3.8G 2% /dev/shm tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock XXXXXXXX XXXXXXXX 128K 76K 48K 62% XXXXXXXXXXXXXXXXXXXXXXXXX /dev/sda2 vfat 1022M 12M 1011M 2% /boot/efi /dev/sda4 btrfs 15T 7.6T 7.1T 52% /back /dev/fuse fuse 128M 16K 128M 1% /etc/pve