Probably obvious to most people but it was new to me. To failover a VC module from primary to backup login to the VC Manager, then go to “Tools > Reset Virtual Connect Manager”.
Click “Yes”, but before that tick the box that says “Force Failover”.
That’s all. Now you will be logged out and after a few minutes you can login to the module that is now primary. It takes a few minutes so be patient.
This has no impact on the network or FC connectivity.
Some more ways of doing this can be found at this HP link.