Ceph File System

CephFS achieves these goals through the use of some novel architectural choices. Notably, file metadata is stored in a separate RADOS pool from file data and served via a resizable cluster of Metadata Servers, or MDS, which may scale to support higher throughput metadata workloads. Clients of the file system have direct access to RADOS for reading and writing file data blocks. For this reason, workloads may linearly scale with the size of the underlying RADOS object store; that is, there is no gateway or broker mediating data I/O for clients.

For most deployments of Ceph, setting up a CephFS file system is as simple as:

Finally, to mount CephFS on your client nodes, see page. Additionally, a command-line shell utility is available for interactive access or scripting via the cephfs-shell.