Greenliant, a developer of special-purpose NAND-flash storage devices, this week introduced its new lineup of ultra-high endurance SSDs. The NANDrive SSDs are aimed at write-intensive industrial applications, and utilize the company’s proprietary EnduroSLC technology and in-house controllers.

Greenliant’s NANDrive SSDs offer endurance ratings of of 50K, 100K, or 250K per-cell program/erase (P/E) cycles, which is well beyond everything offered by "conventional" NAND flash memory manufactured today (SLC is typically rated for ~100K, MLC ~10k, and TLC ~3k).

Right now, the only other storage solutions from Greenliant that offer 250K P/E cycles are their GLS85VM eMMC 5.1, which are available at up to 32GB capacities and offer sequential performance of up to 185 MB/s reads and 140 MB/s writes in HS400 mode. The drives are designed to operate at industrial temperatures between -40°C and +85°C, so they can address virtually any type of application.

Typically, SLC NAND is rated for 100K P/E cycles, but Micron and Sun introduced SLC NAND rated for a million of P/E cycles almost exactly 10 years ago. Companies like Samsung and Toshiba these days offer enterprise-grade Z-NAND and XL-Flash memory that is designed to physically withstand tens of thousands of P/E cycles while offering high performance.

Greenliant does not make its own memory dies, so the EnduroSLC tech allegedly uses enterprise-grade NAND chips produced by an unnamed manufacturer. The company does not disclose a lot of information about its technologies, but as far as we can tell, Greenliant uses a lot redundant raw NAND memory along with a special in-house-designed controller supporting an elaborate feature set and sophisticated algorithms.

Greenliant’s GLS85VM eMMC 5.1 NANDrive SSDs with endurance of 50K, 100K, and 250K P/E cycles are currently available to select customers with select product engagements.

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Source: Greenliant



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  • Amandtec - Wednesday, December 12, 2018 - link

    I guess we are the same page. Captured market = feed them spam for $15. Competitive market = feed them caviar for $1.50. With only a handful of flash manufacturers it is going to be more spam than caviar. However, perennial whining in the Anandtech comments section for each SSD review is going to change exactly nothing. Reply
  • Oxford Guy - Wednesday, December 12, 2018 - link

    Notice how the article doesn't even list QLC in this sentence:

    "(SLC is typically rated for ~100K, MLC ~10k, and TLC ~3k")"
  • shabby - Wednesday, December 12, 2018 - link

    0.1-0.3k? Reply
  • Spunjji - Wednesday, December 12, 2018 - link

    "Currently QLC is going through the same issue, with no new tech in site to salvage it."

    There was no new tech in sight when TLC showed up, either. Your argument consists of a small assembly of strawmen. Chill.
  • DanNeely - Wednesday, December 12, 2018 - link

    I wasn't exactly being serious either. Reply
  • Samus - Wednesday, December 12, 2018 - link

    Dont forget minuscule capacities Reply
  • AdditionalPylons - Tuesday, December 11, 2018 - link

    Very impressive! However, in my humble and very personal opinion, if I had an extremely write-heavy scenario I’d make a RAM disk, and use cronjobs for frequent backing up to other media internally, plus UPS. But maybe the simplicity of having a drop-in replacement for an existing storage solution is worth more to the target audience. Reply
  • JoeyJoJo123 - Tuesday, December 11, 2018 - link

    Yeah, I'd do the same, except every PC in the house already has a UPS backup. But this only matters for storage pools that care about quick random access. Some people here have genuinely expressed wanting to use SSDs for cold storage, for whatever reason, which a RAMDisk + UPS backup really doesn't address. Reply
  • Amandtec - Wednesday, December 12, 2018 - link

    I do this. Only problem is lugging the UPS around along with my laptop bag.
  • Dragonstongue - Tuesday, December 11, 2018 - link

    hmmm, maybe they should have done the "reverse" of that others seem to be doing as of late, that is give SLC based drive for the P/E endurance level and give an MLC or TLC/QLC "Speed" buffer so one gets the benefit of "both" unlike say Sammy or Crucial who give a "small" SLC cache that gets filled up quickly enough and performance suffers.

    Would be great to have a drive that does not cost a boatload with very good read/write AND a very high P/E endurance rating with a very solid temperature range of operation.

    SSD/NVME are "great" these days from a speed and capacity and often very high P/E endurance standpoint (considering the price) but they do not maintain the speed all that long once the cache gets thrown in the gutter.

    As your article alludes, I do not see a direct benefit of them doing this when many other makers are at similar levels already (or at the very least in the way they manage to "work around" some shortcomings)

    All yours for the low low price of both kidneys and just above a fast high level HDD speed with nowhere close to the same capacity ^.^

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