[clug] Is there a NVMe equivalent to the Fusion-IO 'Virtual Storage Layer'?

Duncan Roe duncan_roe at optusnet.com.au
Tue Mar 20 00:04:57 UTC 2018

On Tue, Mar 20, 2018 at 09:04:19AM +1100, linux wrote:
> In 2011, Fusion-IO & Princeton produced a driver that extended RAM with Flash memory on the PCIe bus.
> This avoided page faults entirely - calls didn???t go through the disk drive stack - making this blindingly fast.
> I???ve found the ???nmve??? driver, but think that only maps the SSD as a disk drive, not as ???extended memory???.
> Is there a modern equivalent for M.2 PCIe / NVMe SSD???s?
> regards
> stevej
Hi Steve,

Yes nowadays NVMe SSDs "just work" as regular disk drives - I put one into my
9YO system the other week. AFAIK they are still subject to a finite linit of
read/write cycles unlike actual RAM, so I would suggest putting swap on an NVME
is a good compromise.

Cheers ... Duncan.

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