You need to keep in mind that when you migrate over you can only expose the datastore to a host using 1 protocol. So they CANNOT be connected over FC and miniSAS at the same time, which it seems you won't be doing, but just making sure.
Also, I would recommend to unmount the datastores and then connect the mini SAS at the other location, this probably means you will need to re-register all the VMs! So Make sure to print a list, or do a dump of all the VMs you have running.