I've set up a second server with 2*2TB drives in xfs format, I've disabled docker and VM and deleted the dcoker and libvirt images, but I'm still seeing 14GB used on both discs which are currently in the array (no parity for now).   I understand xfs has an overhead of 1GB for TB but 14GB seems excessive.   On browsing the drives, all I can see are the 4 folders it creates, but nothing inside them, where is the space being used?