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Guru3D.com » News » Enmotus MiDrive: An SSD using SLC / QLC NAND Differently To Offer Better Endurance

Enmotus MiDrive: An SSD using SLC / QLC NAND Differently To Offer Better Endurance

by Hilbert Hagedoorn on: 01/14/2020 10:43 AM | source: enmotus | 2 comment(s)
Enmotus MiDrive: An SSD using SLC / QLC NAND Differently To Offer Better Endurance

It's a bit of a weird press-release, but you might remember Enmotus, the company behind the AMD FuzeDrive. They have a new SSD concept SSD and are working with controller manufacturer Phison. The MiDrive combines durable and fast SLC-NAND memory with inexpensive QLC-NAND. 

Now, I hear you thinking, that's nothing new as in the past SSD always have had an SLC cache (one bot writes per cell = expensive) and then store at TLC (three bits written per cell is 3x cheaper). Nope, the weird thing here is that SLC will not only serve as a small cache but also as "primary data storage ". At least that's how they describe it. Products with QLC-NAND (Quadruple-Level Cell) with four bits per memory cell potentially have the lowest durability and its complexity makes QLC write much slower.

With the MiDrive, Enmotus takes a different approach. No pseudo-SLC cache is used there, instead "real" SLC NAND flash is used as the primary data storage for actively used data, according to the company in the announcement of the CES.

Basically, data that is not written over much will be stored at the QLC partition, and the SLC partition is used for data that writes often, bringing in better endurance. Since you need some soft of intelligence making a decision on what goes where the SSD might need an active software suite (we're not sure though).

We'll have to wait and see how things pan out, they know and understand caching alright.  according to the MiDrive website, an M.2 SSD with 1 TB storage capacity and PCIe / NVMe support is planned under the model number P200HEQM.

Phison and Enmotus Demonstrate QLC Enhancing Technology

LAS VEGAS, Jan. 06, 2020 (GLOBE NEWSWIRE) -- Enmotus and Phison Electronics are jointly demonstrating Enmotus’ performance enhancing MiDrive™ SSD technology. By blending static SLC for primary storage, with cost effective QLC NAND on the same consumer NVMe device, MiDrive SSDs deliver the performance of high end SSDs while allowing OEMs to meet the price points and capacities demanded by users. Unlike current QLC implementations that utilize a portion of the QLC to mimic an SLC cache, Enmotus’ Machine Intelligence technology keeps your active data/games in the true SLC and stores infrequently used data on the QLC - automatically. In addition to performance and cost benefits, MiDrive increases SSD endurance by minimizing the write amplification associated with caching, which allows cost effective QLC to be deployed in volume notebook applications. MiDrive NVMe SSDs are currently sampling to OEMs.

“Phison worked closely with Enmotus integrating Enmotus’ technology with our controllers,” said K.S Pua, CEO of Phison Electronics. “Positioning MiDrive between the niche high performance consumer SSD market and cost conscious users presents a tremendous market opportunity for Phison and Enmotus,” added K.S.

“MiDrive addresses not only the performance and endurance challenges of QLC, but future technologies as well. As flash manufacturers race to achieve price parity with hard drives, the endurance of next generation flash technology such as Penta or five layer flash is expected to get worse,” said Andy Mills, CEO of Enmotus. “The Machine Intelligence behind MiDrive solves this problem by enabling QLC and beyond to be deployed in applications without compromising warranty or longevity specs,” continued Mills.

MiDrive is on display in Phison’s Suite at the Bellagio and Enmotus’ Suite at the Mirage at the CES technology show in Las Vegas January 7-9.




Enmotus MiDrive: An SSD using SLC / QLC NAND Differently To Offer Better Endurance




« ASMedia 600 chipset family for Zen 3 available in late 2020 · Enmotus MiDrive: An SSD using SLC / QLC NAND Differently To Offer Better Endurance · 31.5-inch Lenovo G32qc Gaming Monitor »

Cidious
Senior Member



Posts: 146
Joined: 2007-11-13

#5750592 Posted on: 01/14/2020 03:23 PM
I'm currently using the paid versions of AMD StoreMi, FuzeDrive 1TB to support up to 1TB for the fast drive. And I've tiered my 1TB Sabrent Rocket 4.0 with my 660p 1TB as a game disk, making it effectively 1.81GB in size and gave it a 4GB DRAM cache. It's BLAZING fast big storage. Haven't noticed any slow down even over prolonged writes or copies of game installations. 2GB DRAM cache gave the same results as 4GB but I have 32GB 3800CL16 sitting mainly just half filled so 4GB it is.

I have also paired the Rocket 4.0 with my 860 EVO 1TB and it gave me exactly the same results mainly.

Their software is really good. The drive mentioned here works by the same principle as I read it and it should be good. A different approach but highly utilizable. I'm a big fan of their software. Even use it on my intel laptop with a 950 Pro 512GB and 2TB HDD. Works wonders there too!

tunaphish6
Member



Posts: 99
Joined: 2014-12-03

#5750763 Posted on: 01/15/2020 12:09 AM
I l love disk-caching as much as the next guy, but barring large-scale, high-end applications, I feel like caching is made redundant for the average consumer since the wide-spread adoption of SSD's.

I used to love Intel's implementation--you just set it and it just worked, with little-to-no fear of data loss. But since switching to AMD's platform, while Enmotus's suite offers a granularity not present with Intel's solution, it also consequentially made it more complex and increases the risk of data loss. Twice, on separate occasions, I've experienced data loss, including one drive getting completely wiped. Sure, the software works, but the moment you try to reverse the changes--say, when you need to re-install the operating system, the software ends up kicking and screaming. I don't know if they ever improved the software, but it makes me wary of ever using it again.

And for that matter, what am I trying to cache anyways? SSD's are cheap enough to use as gaming drives, and media drives shouldn't be touched anyways. Not only am I compromising the integrity of my amassed cat photo collection, but hard drives are already speedy enough as it is, spinning disks practically at the pinnacle of their technology. This is besides the fact most games really don't leverage speedy storage anyways, since many console ports pre-load assets since they're accommodating slow blu-rays.

I don't know--it's a novel concept, but I feel like more straight-forward solutions are best; keep it simple. Every once and awhile I'm reminded even SSD's aren't infallible, and even moreso since the inception of QLC. Next thing I know, the drive bugs out keeps writing the same data back and forth between the SLC and QLC storage, using up invaluable writes.

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