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Microsoft Storage Spaces Direct with Persistent Memory

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Microsoft Storage Spaces Direct with Persistent Memory
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At our recent Ignite conference we had some very exciting results and experiences to share around Storage Spaces Direct and Windows Server 2016. One of the more exciting ones that you may have missed was an experiment we did on a set of systems built with the help of Mellanox and Hewlett-Packard Enterprise’s NVDIMM-N technology.

What’s exciting about NVDIMM-N is that it is part of the first wave of new memory technologies referred to as Persistent Memory (PM), sometimes also referred to as Storage Class Memory (SCM ). A PM device offers persistent storage – stays around after the server resets or the power drops – but can be on the super high speed memory bus, and accessible at the granularity (bytes not blocks!) and latencies we’re more familiar with for memory. In the case of NVDIMM-N it is literally memory (DRAM) with the addition of natively persistent storage, usually NAND flash, and some power capacity and to allow capture of the DRAM to that persistent storage regardless of conditions.

These 8 HPE ProLiant DL380 Gen9 nodes had Mellanox CX-4 100Gb adapters connected through a Mellanox Spectrum switch and 16 8GiB NVDIMM-N modules along with 4 NVMe flash drives – each – for an eye-watering 1TiB of NVDIMM-N around the cluster.

Read the entire article here, Storage Spaces Direct with Persistent Memory

via the fine folks at Microsoft.

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