NVDIMMs enable fast, persistent main memory for high-performance computing applications. By combining DRAM and NAND Flash technology, NVDIMMs provide the low latency and nearly infinite endurance of DRAM, along with the nonvolatility of Flash. During normal operation, the NVDIMM appears to the host system as a standard JEDEC DRAM memory module. In the event of an unexpected power loss, the critical data residing in the DRAM is saved to onboard NAND Flash using a battery-free power source based on ultracapacitors. When power is returned, the in-memory state of the DRAM at the time power was lost is restored from the Flash. The recovery time from a catastrophic power-loss event is almost immediate since the restore operation takes a matter of seconds and recharging the ultracapacitors takes only minutes. NVDIMMs are designed to integrate easily into the DIMM slots of industry-standard server and storage platforms.
NVDIMM samples are expected to be available in 1Q13.