Drobo and other companies announced that they are including SSDs in their storage products as a caching tier showing that flash-based cache is moving into the SMB market.

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This need, plus caching of frequently accessed content will drive the requirements for flash memory storage as an important tier in enterprise storage infrastructures.

FORBES: Storage System Trends for 2013 and Beyond

The fourth tier is an Edge Server that brings in contextual data, tracks and analyzes interactions through APIs, provides caching, and supports real time analytics to operationalize all available signals.

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