with Unity taking into account, it is certainly a good idea to think about your physical data storage.
As you cannot have overlap between volumes and tables this can become cumbersome.
F.e. we used to store delta tables of a data object in the same directory as your ingested files.
With unity, this structure is now impossible.
So I'd create a separate container for tables and one for volumes, to avoid this overlap.

This is of course easier said than done on an existing environment.
As much as I like Unity, it does give me a lot of headaches because we have to do serious refactoring to embrace Unity.