For metadata is stored in files in the cephfs OSD what position? The inode information such as a file or directory,

File data corresponding to the objects in the data pool according to the corresponding oid through the command found in the osd actual storage location (/var/lib/ceph/osd/ceph_0/current/* * _head), access to the data through (cat),

In the same way also can be found in the metadata pool according to the oid directory corresponding object in the osd, but can't get data countless according to output (cat), and also the metadata in the pool is 1.00000000. The inode and 100.00000000 inode corresponding data also can't through the cat in the osd,

Metadata is through levelDB stored in/var/lib/ceph/osd/ceph_0/current/omap under corresponding * *. LDB file? (if not, how the metadata stored?) * * in LDB file can decode the data can be read??

The beginner ceph, don't understand, o great spirit guide