What changes in the FOS are there when going from v7.1.1 to 7.4.x that have anything to do with bottlenecking on the SAN?
please see the release Notes for details.
Can you purchase FOS updates without having Brocade maintenance?
accordly Brocade Support aggrement you have more option to get new FW.
Get quick and easy access to valuable resource designed to help you manage your Brocade Network.