I'm intending to upgrade our Brocade fabrics from gen5 (6510 running FOS 8.x), to gen6, and I would need your assistance please to check the compatibility and interoperability of using both gens in the same fabric.
I added both the Brocade 6505 (Gen5) and 6510 (Gen6) switch to the Interoperability Tool and the results multiple versions of FOS 8.x are Supported. You can refine the tool with more details of your environment within the tool: NetApp Interoperability Matrix Tool.