Re: well it's about time
Data in place for //m series controller upgrades or to //x(which is basically a controller upgrade). Going from the old Dell based controllers on the FA-4xx series to the //m appliances was a NDM across arrays. You had to install HBAs into a reserved PCIe Slot on the new array controllers to handle the cross array data movements. There's a video series on taking a FA-4xx to a //m20 to a //m50 somewhere on youtube.