Today’s databases require low latency and high performance. However, a major gap exists between fast, local memory and slow high-capacity storage. Flash memory bridges this gap by inserting a flash memory Tier of SAS or PCI Express-based solid state drives between local memory and internal hard drives or external storage arrays. The addition of a flash memory tier creates significant performance advantages for database accesses.
The flexibility and scalability of flash memory provides multiple options for increasing the performance of your most critical database. Whether using this tier for storing local indexes and tables, caching critical or hot data, or storing the entire database locally, flash increases the efficiency and lowers the latency of database systems.