Micron’s 96-Layer 3D TLC NAND Demonstrated, Qualified by Maxio, SMIby Anton Shilov on June 11, 2018 12:00 PM EST
Micron yet has to formally introduce its 3rd generation 96-layer 3D TLC NAND flash. But as we've spotted on the Computex showfloor, SSDs based on the new type of memory are already being demonstrated by two developers of SSD controllers — Maxio Technology and Silicon Motion.
Intensified competition on the storage market is calling for NAND flash makers to rapidly increase bit density of their chips in a bid to enable makers of actual SSDs or smartphones to boost capacity of their products without considerable cost increases. In the coming quarters all leading producers of memory will be rolling out their 3D NAND devices using 96-layer 3D TLC, 64-layer 3D QLC, and 96-layer 3D QLC architectures. Back in May, Western Digital confirmed that some of its customers had already started to use the company’s 96-layer 3D TLC NAND for retail products (USB flash cards, memory cards, etc.). As it turns out, Micron’s 96-layer 3D TLC memory has already been qualified by at least two developers of SSD controllers.
At Computex, Maxio Technology was demonstrating a prototype of a 256 GB SATA SSD running its MAS0902A-B2C DRAM-less controller and Micron’s 3D TLC B27A memory. The drive hits practical performance limits of a SATA 6 Gbps interface, and thus enables SSD makers to build rather speedy mainstream products using the new memory (which is going to be cheaper in terms of per-bit cost than previous-gen 64-layer 3D NAND).
The new 96-layer 3D TLC NAND memory from Micron has been qualified for SSDs by Maxio, though it is unclear whether firmware for the new type of memory is production ready. Anyhow, as soon as Micron starts sales of these chips, there will be at least one SATA SSD controller that will support it.
Silicon Motion is also playing with Micron’s 96-layer 3D TLC NAND, but on a different side of the spectrum. The company is demonstrating a prototype of an M.2 SSD based on Micron's 96-layer 3D TLC memory as well as its top-of-the-range SM2262EN controller and thus aimed at high-end PCs. The controller itself is in its final stages of development: the final BA revision of the chip was produced in early May and now its firmware is being tuned. With the SM2262EN we are looking at up to 3.5 GB/s sequential read speed as well as up to 3 GB/s sequential write speed.
Silicon motion expects SSDs featuring the SM2262EN and various kinds of 3D TLC NAND to hit the market in August or September. It is hard to say whether Micron’s 96-layer 3D TLC will be used for the first wave of SM2262EN-powered drives, but SMI has qualified this memory type for SSDs and therefore its partners will have this memory option.
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Dragonstongue - Monday, June 11, 2018 - linkI wonder why no maker seems to have done the many layer (such as in this case 06 layer) for SLC or MLC instead going TLC or QLC (yuck) I can understand cost and such, however, you figure there would be more a market for SLC or MLC from the perspective of data longevity which TLC may or may not have let alone QLC which very likely will suffer from data retention problems.
then of course there is the actual P/E cycle endurance which nothing comes close to SLC in this regard, latency etc as well.
It would be one thing if they could cram say 2tb SSD for like $100 TLC or QLC at decent speeds/endurance levels, but this does not seem to be the case currently, they trim back THEIR costs but are in no rush to pass the savings/performance benefits to the buyer O.O
If anything about this article is nice, it is Micron upping the layer count of TLC vs chasing the QLC "pipedream" that someone like Intel is doing (likely to be priced higher than should be because of the complexity QLC is likely to have)
Billy Tallis - Monday, June 11, 2018 - linkSamsung's Z-NAND is 3D SLC optimized for latency. In the enterprise, nobody wants to go back to MLC or SLC for the sake of throughput, because you can achieve the same in a more cost effective way by adding more TLC drives.
In the client/consumer space, everybody uses SLC to the extent that it makes sense (as a write cache), and the latest TLC is otherwise fast enough that there's no point spending so much extra for a pure MLC drive.
And Intel and Micron are both doing QLC, with Micron's QLC drives actually shipping first. They're also both doing the same 96 layer 3D NAND—their joint venture for flash development expires after the 96L node.
boeush - Monday, June 11, 2018 - linkThat doesn't address the perfectly legit worry about data retention. It seems the option is either move all your TBs-worth of totally legitimate* audio, video, and game content to the cloud - and live at the mercy of your ISP's broadband data caps - or keep all that lifetime's worth of stuff on a local drive backup, only to discover 5 years down the road when you actually bother to try retrieving it, that all the data has 'decayed' into a pile of digital garbage...
*not at all pirated, naturally ;) ;) ;)
edzieba - Monday, June 11, 2018 - linkIf you're worried about long-term cold storage, then either write to to tape or to archival optical media if you're daring. Of course, you still need a climate controlled room to keep them in, so it;s not totally passive. HDDs are electromechanical devices and have plenty of failure modes even if the bits on the platter are technically intact (right up until you fire up that old drive and gouge the heads across it, anyway).
For home storage, then the most feasible option is an HDD or SSD array on ZFS, with at least double-parity (RAIDZ2), with array scrubs run regularly, and drives cycles out when they start getting UBRs or when they hit MTBF.
boeush - Monday, June 11, 2018 - linkYeah, but what you're describing is not so much a home storage solution, as it is an IT Pro's Master's Thesis. Your typical average consumer not only will fail to follow the expected best practices, but will utterly fail to comprehend all the jargon and all the essential concepts to begin with...
CheapSushi - Tuesday, June 12, 2018 - linkStorage Spaces in included in Windows and it's super easy. StableBits DrivePool, also on Windows is super nice and easy too. What more do you want? If consumers care, they'll have multiple copies of something. They'll get USB/Thunderbolt external drives. Or use BackBlaze or similar. What exactly are you expecting here? For it to be spoon fed to you? Hire someone then. It's already not difficult and you don't need to be some Linux Wizard to have at it.
CheapSushi - Tuesday, June 12, 2018 - linkAlso, on every new Intel motherboard, you get Intel RST, a way to do RAID, that's not part of Windows. It's also easy. There's no different from what you could do with HDDs. Windows itself tries to cloud back most important things like documents and they offer One Drive. There's several options. I'm really not sure what you're expecting more of.
wumpus - Wednesday, June 13, 2018 - linkA much easier system would be to simply have two (spinning platter) NAS systems*: on online in use and the other offline and for backup. Don't go anymore complicated that you need.
Note: if you want RAID, then put it on the backup. The N+2 is almost certainly overkill, but the moment one decides not to power up after a long rest you will thank me. All RAID does on the primary is lets your backup go untested even longer.
* best NAS system is an old computer (either yours or from Craigslist). Possibly in a new case with more drive bays.
CheapSushi - Tuesday, June 12, 2018 - linkIf you're hoarding a lot of data you want to keep, then why aren't you doing something like Storage Spaces ReFS with Integrity Streams or ZFS, keeping multiple copies (in a RAID like setup) and following the 3-2-1 rule? If it's all decayed and there's zero copy of it to get back, that means you really didn't care enough.
boeush - Tuesday, June 12, 2018 - linkGreat advice. Now explain all that to the average Joe Sixpack. Yeah, that's indeed the point that you completely missed.