All-Flash storage is taking over many, but not all, production storage responsibilities but because of cost, most organizations can’t justify placing all production workloads on all-flash storage. These organizations then certainly can’t justify placing secondary storage and data protection workloads on all-flash. These systems, in most cases, have the performance capabilities to support all of these various workloads but the high cost of flash relative to high capacity hard disk drives makes the goal of an all-flash data center impractical.