Hi

 
Long story short Dell supplied some 730xd Servers with HBA330 controllers when we ordered and require H730P controllers (for SSD/vSAN).

Of course before we realised we already had VM running on them.   Dell are sending us the right controllers which we need to swap.   

What will happen when we swap the controller?   Will the system just ask us to import the foreign  config and we can retain the OS or will it require complete OS rebuild?

Thanks