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September 04, 2013


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Steve, what is the underlying operating system? Linux? FreeBSD?

Steve Todd

VNX is Embedded Windows, VNXe is LINUX


Hi Steve,

Thanks for your very informational posts. I'm wondering if you can give some insight into a question I've pondered for some time. Obviously, the leap to Westmere chips in the VNX and now Sandy Bridge in VNX Next Gen has led to a huge increase increase in overall performance capabilities of the mid-tier array. That being said, why did it take so long to finally embrace latest generation server-class CPU's in storage array controllers? Was the performance just not needed back then (pre-flash), was it cost, or some other reason?

Pre-VNX, most CPU's that were released in storage controllers were typically not the highest speed CPU's available at the time of release, and many were CPU's designed for embedded use cases (Jasper Forest). Even though EMC has now refreshed to Sandy Bridge, many other storage arrays still haven't caught up to the Westmere chips in the Classic VNX.

Daniel Cummins

Certainly FLASH was a major factor. With previous generations the FLARE operating environment leveraged asymmetric multiprocessing which was good enough through about 4 cores. In order to leverage FLASH and to scale with the Intel roadmap we needed change our approach to multiprocessing. We could not justify this investment until the next gen VNX which leveraged much more than 4 cores.

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