fs/ceph/Kconfig v3.0-rc7

CEPH_FS

Ceph distributed file system (EXPERIMENTAL)

Choose Y or M here to include support for mounting the
experimental Ceph distributed file system.  Ceph is an extremely
scalable file system designed to provide high performance,
reliable access to petabytes of storage.

More information at http://ceph.newdream.net/.

If unsure, say N.