Hi,
We're needing to do something similar here with our Apple VTrak E/J610s and VMware 5.1... the Promise support guy I got assigned to says there's no way to do this, upgrade or ESX 5.1. I don't understand why, if it's the same physical hardware, it can't be flashed to the latest firmware... wouldn't that just overwrite the Apple-specific stuff and be done with it?
Is there no other way to get these boxen to talk to ESX 5.1?
Out of curiosity, what would happen if you did flash the latest non-Apple firmware onto the Apple VTrak? Does that brick it?