Solid state drives Fujitsu

200GB 2.5" SSD for ETERNUS DX80 2/DX90 2, single shipment New Solid State Drives (SSD) are starting to replace conventional disk drives. They use semi-conductor memory to store data. Importantly they contain no motors or moving parts and are characterized by much higher speed read/write access and reduced power consumption.

Because of the use of semi-conductor memory, SSD provide astonishingly high levels of random access performance compared with even top-end 15,000rpm disk drives. They benefit applications with high random access requirements such as databases.
In addition, with no motors or moving parts they have higher reliability than disk drives.
This means that SSD is ideal for Tier0 storage use. This improves storage layer optimization in systems that use Information Lifecycle Management (ILM). (Tier 1: Online disk drives, Tier 2: Nearline disk drives, Tier3: LTO Ultrium drives, archive)

The SSD used in ETERNUS

The SSD used in ETERNUS has enterprise class performance and reliability.
While maintaining compatibility with traditional disk drives, it allows low power operation at very high-speeds.

For concerns about flash memory rewrites, SSD in ETERNUS extends using SLC (*Note 1) type flash memory (*Note 2), Error Correcting Code (ECC (*Note 3)) and a wear leveling function (*Note 4).
In addition, data high-reliability is also protected by ECC inside the SSD.
If a power failure occurs SSD in ETERNUS can move any data in the volatile memory of the SSD (high-speed DRAM cache) to the flash memory and ensure a safe system halt.