Just go to the website and order a basic unit for an other location, a special (datadistribution or database) version or extensions of one or more new 16 Tb native blocks (in full -Raid 1- redundancy this is 2 times 8 Tb native, so 2 times 7 Tb net). We come to connect them and add their capacity to your current main logical volume or create new secondary logical volumes on the new capacity.