Hi @AEM_Forum
I went through the documentation as well. It's obviously unclear about low-level design if there's only one binary storage or multiples tied together.
For e.g. in the diagram it has shown only 1 experience manager and no low-level detailing. However, we know that behind 1 experience manager there're multiple pods running for author, publish instances. So, could be the case the for Binary storage as well.
Maybe an Adobe ticket helps to clarify the underlying structure in detail.
Best regards,
Himanshu Singhal