I know that there are procedures to upgrade the IOS on redundant Supervisor modules for the Catalyst 4507. However, can you upgrade the physical hardware with High Availability?
For example, right now I have a chassis with two Sup II+ supervisors. Can I remove the standby, replace it with a Sup V, upgrade the code on the Sup V, then initiate failover with high availability?
Has anyone done this, and is there any documentation of how to do it on Cisco's site?