Home > Data Protection > PowerProtect DD Series Appliances > Dell PowerProtect DD Series Appliances and Commvault Integration Guide > Reference architecture
The DD series appliance is presented to the Commvault server as a CIFS, NFS, DD Boost, or DD VTL storage target, depending on the media agent platform. For CIFS, NFS, and DD BoostFS, the first consideration to address is what level of CIFS, NFS, and DD BoostFS sharing is wanted for the DD series appliances.
The following figure shows the high-level architecture for a Commvault server with the DD series appliance defined as its CommCell Storage Library. With this configuration, the Storage Library settings never need to be updated as capacity is added. When capacity is added to the DD series appliance, the CommServe and MediaAgents immediately see the additional capacity without additional configuration or manual intervention.
By default, CIFS, NFS, and DD Boost can share the entire DD series directory structure (\\datadomain\backup) to all or selected hosts. Alternatively, subfolders or an MTree can be created for explicit sharing. The choice depends on the specific use case for the customer environment.
Note: For detailed information, see the DDOS Administration Guide and DD BoostFS Commvault Compatibility Guide.