Fwd: The Morning Paper: NOVA - A log-structured file system for hybrid volatile/non-volatile main memories

[Lev Serebryakov]

Hello Poul-Henning,

Saturday, May 7, 2016, 7:38:21 PM, you wrote:

> Hybrid "disk with SSD cache" is a transitionary phenomena, it's
> probably not going to be relevant in five years, which means
> that it is almost already too late to develop a new filesystem
> for it:  By the time the code is trustworthy, nobody will need
> it any more.
   Do you consider new Intel NVM "3D XPoint" technology? They(tm) promise
 prices lower than DRAM, but higher than SSD. And same for speed. Looks
 like, there will be THREE layers of NVM in near future: very large and slow
 (HDD, iSCSI/FC attached "shelf", things like this, multiterabyte), SSD
 (in 1-10 terabyte range) and this XPoint in current SSD range.

-- 
Best regards,
 Lev                            mailto:lev at FreeBSD.org
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