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.