HPE 3PAR StoreServ 7450 storage is the all-flash array that delivers the performance advantages of a purpose-built, flash-optimized architecture without compromising resiliency, efficiency, or data mobility. A flash-optimized architecture reduces the performance bottlenecks that can choke general-purpose disk arrays that have been retrofitted with solid state drives (SSDs). The HPE 3PAR StoreServ 7450 Upgrade Node Pair is designed to convert an existing previously installed HPE 3PAR StoreServ 7450 2-node Storage Base into a 4-node configuration.