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flash cache appliance

Definition

flash cache appliance

A NAND flash cache appliance is a dedicated network appliance that resides between the hosts and underlying storage arrays. The NAND flash appliance caches data as it travels through the network so it can be retrieved quickly when it is needed again. Many appliances have built-in logic that decides what data should be placed in cache so when read requests are received, the appliance can answer them.

Related glossary terms: solid state drive (SSD) capacity, stand-alone solid state storage (SSS), solid state module (SSM), RAM-based solid state drive (SSD), client solid state drive (SSD), queue depth, Fast Guide to RAM, semiconductor fab, floating gate, tunnel injection

This was last updated in January 2012

Posted by: Margaret Rouse

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More News and Tutorials

MRAM technology likely choice as post-flash solid-state storage

NAND flash-based storage is becoming a common alternative, but NAND flash could soon be replaced by newer forms of non-volatile memory like MRAM technology.
Micron brings out 2.5-inch SAS SSD, anticipates decline of SATA SSD

Micron launched the 6 Gbps, 2.5-inch P140m SAS SSD this week, and expects SAS to overtake SATA as the most popular SSD interface by 2016.
EMC pushes out XtremIO flash array, more PCIe flash

EMC makes its XtremIO all-flash array available on a limited basis, also adds eMLC PCIe server-side flash cards and rebrands VFCache.

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