Flash-optimized Data Progression

For several years, Dell Compellent Storage Center arrays have leveraged a unique application of RAID and tiering methods Dell Compellent Data Progression to optimize storage performance and capacity. With the emergence of higher performing controllers, as well as the rapid adoption of SSDs, Dell has a new level of Data Progression optimized for flash drives. The combination of write- and read-intensive SSDs and Flash-optimized Data Progression enables Storage Center arrays to deliver large amounts of high-performance solid-state storage at a fraction of the cost compared to other storage solutions. To introduce Flash-optimized Data Progression, this white paper summarizes Dell's current Data Progression techniques, gives a high-level description of SSDs, and describes the implementation of Flash-optimized Data Progression.