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What is NVMM ?

What is NVMM ?

Posted May 19, 2018 13:11 UTC (Sat) by jake (editor, #205)
In reply to: What is NVMM ? by ju3Ceemi
Parent article: The NOVA filesystem

> What is NVMM ?

From the article:

> NOVA exclusively targets non-volatile main memory (NVMM) rather than traditional block devices (disks or SSDs).

jake

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What is NVMM ?

Posted May 19, 2018 13:53 UTC (Sat) by ju3Ceemi (subscriber, #102464) [Link]

Sure, but that does not give any explaination about the technology by itself
I guess that Andiry Xu is working on that because there is a specific upcoming hardware, yet I do not find anything about it

Besides, I do not understand the differences between this hardware and NVMe's : or maybe NOVA is targeting NVMe devices as well ?

What is NVMM ?

Posted May 20, 2018 14:41 UTC (Sun) by musicinmybrain (subscriber, #42780) [Link]

I think this work is primarily targeting NVDIMMs (non-volatile DIMMs). Most (all?) of the products on the market in this category currently use conventional DRAM that is hastily backed up to a Flash chip when the module loses power, much like the flash-backed write caches on certain RAID controllers. You can buy these NVDIMMs from major server vendors already. The obvious next step is to build them with an inherently nonvolatile technology like 3D XPoint.


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