What is Tiered Storage?

Data has a hierarchy of usefulness. To start, data typically is created and perhaps edited repeatedly followed by numerous reads and perhaps re-edits. During this phase fastest storage (Flash) is ideal. As data ages – the number of read or edit requests diminishes and so this data can be relocated to lower cost, hard disk-based storage technologies. Finally, data is no longer accessed but still potentially has value and is archived to tape or Cloud storage.