Your customer has two clustered SQL servers that require direct access to LUNs located on their VNX storage array. Both servers are located in the customer's main office. The VNX storage array is…

Your customer has two clustered SQL servers that require direct access to LUNs located on their VNX storage array. Both servers are located in the customer's main office. The VNX storage array is located in the customer's data center, which is approximately 1.5 km from their office. Both facilities are interconnected using their existing IP network. Which protocol should be used to connect the servers to the storage array?