I have an Equalogic Dell PS4210.

Two Controllers each have their own dedicated switch

my master switch (SW0005) is having issues and I need to restart it, however, the Controller (Slot 1) is currently active.

my backup switch (SW0006) is ready to go and connected to the Controller (Slot 0) and currently secondary

How do I force Controller Slot 1 (currently secondary) to become the Active controller so I can work on the switch connected to it ?

We have two vmware hosts in a cluster connected to the SAN and I can't stop them. Can this controller switch be done in a live production environment?
If a minute or so is needed for the switch to happen and the VM's would stay online, that would be great.

thanks