On the 10x00 series (V Class) 4 port HBA's are dedicated to drive chassis support only. The front end HBA ports can be used for either host or remotecopy connectivity. Although it is possible to switch the personality of any port to support disk, doing so would get you into a very large hole in terms of ongoing expansion. So stick to dedicated HBA's for backend disk cages, below taken from HP documentation
Per Node
Three PCIe slots are reserved for Drive Chassis connectivity (total 12 ports via three 4-port Adapters)
Six PCIe slots are available for FC hosts and/or FC-based Replication
Both nodes in a node pair must be configured identically