Control Plane 

A software layer that manages data stored across one of more storage pools that are implemented by storage systems and/or server-side storage. The Control Plane manages data provisioning and may orchestrate data services across these storage pools but does not access the data directly for Read and Write operations and does not implement the native data services

Data Plane

The software layer that manages data layout, storage devices, and Read/Write operations to data stored on storage devices such as SSD and magnetic disk drives. The Data Plane can also provide native data services such as snapshots, clones, and replication as well as capacity optimization.