Description of problem: [1] https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/6/html/file_system_guide/ceph-file-system-administration#using-the-cephfs-top-utility_fs The downstream docs [1] needs an update. Especially from section 5.1.1 and below sections (Interactive commands, utility options) needs update. Refer the upstream docs.