dir fs netfs logical disk iscsi scsi mpath rbd sheepdog -1 -1 chap ceph auto ext2 ext3 ext4 ufs iso9660 udf gfs gfs2 vfat hfs+ xfs ocfs2 auto nfs cifs glusterfs none dos dvh gpt mac bsd pc98 sun lvm2 auto lvm2 iqn\.[0-9]{4}-(0[1-9]|1[0-2])\.[a-zA-Z0-9\.\-]+(:.+)?