File Storage Service

Physical storage resources of a distributed file system may not be connected to the local node directly. Instead, the resources are connected over a computer network. CephFS uses the Ceph cluster to provide a file system compatible with POSIX, allowing Linux to directly mount Ceph storage to the local host. Like NFS and SAMBA, it provides shared folders. Clients use the storage provided by Ceph by mounting directories.

When the CephFS is used, you need to configure the MDS node. The MDS node is similar to a proxy cache server of metadata. It provides metadata computing, cache, and synchronization for the Ceph file system.