Non-volatile Storage | the morning paper: "This invalidation is due to the arrival of high-speed, non-volatile storage devices, typically referred to as storage class memories (SCM). The performance of an SCM, at hundreds of thousands of iops, requires one or more many-core CPUs to saturate it. The most visible type of SCMs today are PCIe SSDs (SSDs attached via the PCI-express bus). Beyond PCI SSDs there are NVDIMMS, which have the performance characteristics of DRAM while simultaneously offering persistence – these tend to couple DRAM and flash on a DIMM and use a super-capacitor to provide enough power to flush the volatile contents of DRAM out to disk on a loss of power. And then of course there’s the even cheaper battery-backed distributed UPS solutions that we looked at yesterday…"
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