If you use FreeNAS with the H730P in HBA mode it will autoselect the old mfi driver. To force the correct mrsas driver add mrsas_load="YES" in /boot/loader.conf.
Also add in loader.conf
kern.geom.label.gptid.enable="0"
kern.geom.label.disk_ident.enable="0"
In /boot/device.hints add hw.mfi.mrsas_enable="1"
