Intel would rather you talk about their new QLC SSDs

Subject: General Tech | August 10, 2018 - 12:37 PM |
Tagged: Intel, QLC NAND, 600p, D5-P4320, PCIe SSD, M.2

Not to be out done by Samsung, Intel have also announced new QLC based SSDs, the 600p series and the D5-P4320.  The two series of drives rely on SLC caches to provide extra lifetime to the QLC flash which is not as robust as other varieties, the 600p is rated at 0.1 drive writes per day and the D5-P4320 is rated for 0.9 sequential writes per day, 0.2 for random writes.  The two drives also share a five year warranty in common.  The D5-P4320 sports a capacity of 7.68TB whereas the 600p comes in more affordable 520GB, 1TB and 2TB capacities.  Drop by The Inquirer for more information on the two new series of NVMe SSDs from Intel.

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"The SSD 660p is a single-sided M.2 format consumer drive following on from the 600p with 52GB, 1TB and 2TB capacities. The 600p topped out at 1TB."

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August 10, 2018 | 02:47 PM - Posted by ThatRightThereIsInnovative (not verified)

Charlie D at S/A has some good things to say about the 600p and he also has linked to a Legit Reviews benchmarking article that tests the drive's performance and the changes that occur when you overrun the cache.

So His discription reads:

"The dynamic caches work by putting the QLC flash into SLC mode which means faster reads and writes for the price of using 4x the capacity. If the data is handled correctly, it will be copied transparently into QLC regions during idle periods and the user will never notice. If it is done incorrectly it will either overrun and the user will see QLC speeds or it will pause the drive to copy at which time the user will see the device effectively lock. Most users won’t ever see either case but power users should at least be aware of how the cache works before buying." (1)

So that's what I want for an SSD that treats the cells like they are SLC but can, in the background, copy that over to QLC mode to make space. So that's Dynamic SLC to QLC and inbetween at some time, hopefully. I'd still like to see this come with some DRAM cache but this is priced low enough and actually having dynamic SLC available in great.

They should do this for all SSDs and let folks choose performance over space with the Option of letting the system take the least recently used data and store that in QLC mode to make more space. Page 6 of the Ligit Reviews article goes into greater detail about what Intel calls "dynamic SLC-cache architecture". So that's what I was waiting for and There should be an industry standard for this sort of NAND/Dynamic Cell State allocation and let the system manage that for better performance.

I'd also like any cells that no longer could reliably work as QLC automatically reallocated as SLC if that can reduce the error rates down enough to keep the cells from being marked as useless. That should keep the drive lasting longer at the cost of some capacity.


"Intel’s QLC bearing SSD 660p has some nice twists

Updated: Dynamic SLC caching and new flash on PCIe"

August 10, 2018 | 03:05 PM - Posted by pdjblum

has samsung announced actual retail products, or just that they are going to be soon?

August 10, 2018 | 05:00 PM - Posted by Ireen (not verified)

The 600p really takes a performance hit when it's full.

But if the prices is low enough, you can buy a big drive, so it will take a while to fill.

August 11, 2018 | 12:35 AM - Posted by Hakuren

Intel might want everybody to talk about their new SSDs, but let's be honest. Intel is in the doldrums as it stands. In desktop area Ryzen/Threadripper trashing, in server segment - Epyc trashing, in SSD area Samsung is so far ahead of everybody that it is not even funny.

Now waiting for Samsung to drop positive news about price of 4 TB model and I'll jump into it like so :snapfingers:. For a WORM drive I want, QLC will do its job.

August 11, 2018 | 01:52 PM - Posted by SLCisBestYouSee (not verified)

I hope that Samsung will get somthing similar dynamic SLC caching so the drive can treat cells like they are SLC for faster R/W on hot data and have the SSD's controller just rewrite the colder data to cells in QLC mode in the background idle periods to save space on the drive. That way consumers can get the best of SLC and the storage capacity of QLC NAND.

Let's hope that StoreMI/Other similar Tiered stotage solutions can be used also and any cold SSD data that's stored in TLC mode can then be transfered to spinning rust for longer term storage.

August 11, 2018 | 01:28 PM - Posted by Originalblu (not verified)

"The SSD 660p is a single-sided M.2 format consumer drive following on from the 600p with 52GB, 1TB and 2TB capacities. The 600p topped out at 1TB."

Maybe 512gb?

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