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Toshiba Looks to Take on Optane With XL-Flash Low-Latency 3D NAND Technology

Raevenlord

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Toshiba at the Flash Memory Summit announced that it's developing 3D XL-Flash technology - an approach towards the creation of low-latency, 3D NAND that can take on the surging Optane and 3D XPoint memory technologies. Toshiba says the new approach to low-latency NAND could bring latency values down to just 1/10 of current consumer, TLC NAND pricing.

The bet here is on economies of scale - a revised NAND architecture and deployment will still be able to take advantage of the huge fabrication capacity that Toshiba already enjoys (and Samsung, with its Z-NAND, similar in purpose to what Toshiba want to do with XL-Flash), thus avoiding the need for technology and production ramp-up that brought Optane's pricing up. Toshiba will be using its BiCS flash technology, but XL-Flash will be - at least at first - deployed in SLC implementations, so as to improve performance (7 microseconds program time against QLC's 30 microsecond). Of course, this will bring storage density down, but remember the target here is offering Optane-like performance and equal or better density at lower pricing.





The steps Toshiba has taken to increase performance include shortening bitlines and wordlines, internal connections between flash cells - shorter pathways means lower latency and improved performance. Additionally, parallelism and performance have been increased via the addition of more flash planes - independent regions that can respond to data requests simultaneously. Expect to see XL-Flash being used as caching memory in high-density QLC drives, as well as standalone products that look to dethrone Optane's grasp of peak theoretical performance.



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Exciting times for storage enthusiasts. It's unbelievable how long it took to get here - almost 30 years since the first flash-based SSD was introduced to consumers (20MB for $1000, in 1991 IBM ThinkPad laptop). The pace is picking up a little now, that starting price of $50,000/GB is now 20¢/GB, and dropping. I predict 10¢/Gb by late 2018.
 
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Exciting times for storage enthusiasts. It's unbelievable how long it took to get here - almost 30 years since the first flash-based SSD was introduced to consumers (20MB for $1000, in 1991 IBM ThinkPad laptop). The pace is picking up a little now, that starting price of $50,000/GB is now 20¢/GB, and dropping. I predict 10¢/Gb by late 2018.

Hah.. what was that? Some kind of MCA based Thinkbad?
 
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This is fantastic news. It's positioning itself as a direct competitor to Optane performance. The increase in planes thereby increasing parallelism should theoretically reduce the number of chips needed to achieve the higher bandwidth necessary to compete with Optane. More competition should bring down prices for all flash and that's good news for consumers.
 
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Toshiba. The only Japanese tech company still innovating.....
 

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Optane also brings way better p/e cycles to the table. NAND, as much as you tweak it, won't be able to do that.
If anything, with lower latency, you'll be able to wear down flash faster than ever :D
 
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