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VMware Server Side Caching - Flash SSD or DRAM
The storage problem with server virtualization is pretty well known: it creates an I/O blender that will severely diminish the performance of storage networks and systems. And while many organizations have turned to flash-based server side caches to solve this problem, DRAM-based server-side caching is another alternative worth considering.
This study from Storage Switzerland provides a comparison of flash-based caching to DRAM-based caching, focusing on the challenges associated with each, their relative reliability, the volatility of each, and more.