5. Distributed storage tiering
Vastly faster than disk and many times cheaper than DRAM, NAND flash memory is a hot commodity that will heat up further when storage management software catches up with its potential in the data center. Its combination of high speed and low cost makes it excellent for server-side cache and a natural choice for tier-one SAN storage.
With the cost of flash dropping and the capacities of SSDs on the rise, the days of disk drives in servers and SANs appear to be numbered. The best part: Flash storage will enable server-side storage to be managed as an extension of the SAN, storing the most frequently accessed or I/O-intensive data closer to the app. It's like caching, but smarter and more cost-effective.