Durning my time supporting the StoreOnce Technology both Hardware and Software, I have seen
several environments where there has been multiple B2D devices configured (libraries) which point to the same store.
Doing so will create a multitude of Media Item Management issues. Configuring multiple B2D devices that point to the same store is not supported. Please see the following statement from the Deduplication User Guide:
It is not supported for more than one B2D device to access the same store. This means that each B2D device must be configured to a dedicated store. Do not configure a second device to use the same store.