MDS System Architecture Overview Ceph MDS is the core component of CephFS (Ceph File System), responsible for handling all file system metadata operations. MDS adopts a distributed, scalable architecture that supports multi-active MDS and dynamic load balancing.
MDS Position in Ceph Ecosystem 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 graph TB Client[CephFS Client] --> MDS[MDS Cluster] MDS --> RADOS[RADOS Storage Layer] MDS --> Mon[Monitor Cluster] subgraph "MDS In Ceph" subgraph "Client Layer" Client Fuse[FUSE Client] Kernel[Kernel Client] end subgraph "Metadata Layer" MDS MDSStandby[Standby MDS] MDSActive[Active MDS] end subgraph "Storage Layer" RADOS OSD[OSD Cluster] Pool[Metadata Pool] end subgraph "Management Layer" Mon Mgr[Manager] end end Client -.