FMS 2015: *UPDATED* Samsung Adds Layers to its 3D VNAND, Doubling Capacity While Reducing Power Consumption
Subject: Storage | August 11, 2015 - 04:39 PM | Allyn Malventano
Tagged: vnand, tlc, Samsung, FMS 2015, 48-layer, 32GB, 32-layer, 256Gbit
FMS 2015: Samsung Adds Layers to its 3D VNAND, Doubling Capacity While Reducing Power Consumption
Samsung recently added 2TB capacity parts to their 850 EVO SATA SSDs, but today’s announcement may double that. Today at Flash Memory Summit, Samsung has announced a new iteration on their 3D VNAND technology.
Cross section of Samsung 32-layer VNAND. (TechInsights)
The announcement is a new TLC 3D VNAND (the type present in the 850 EVO Series). The new parts consist of an updated die with the following improvements:
- 48 layer VNAND - up from 32 layers of the previous generation
- 256Gbit (32GB) capacity - up from 128Gbit (16GB) capacity of 32-layer VNAND
- 30% reduction in power consumption over 32-layer VNAND
Samsung’s new 48-layer VNAND.
I suspected Samsung would go this route in order to compete with the recent announcements from Intel/Micron and SanDisk. Larger die capacities may not be the best thing for keeping performance high in smaller capacity SSDs (a higher number of smaller capacity dies helps there), but it is definitely a good capability to have since higher capacity per die translates to more efficient flash die production.
The Samsung keynote is at noon today (Pacific), and I will update this piece with any photos relevant to the announcement after that keynote.
I just got out of the Samsung keynote. There were some additional slides with data relevant to this post:
This image simply shows the additional vertical stacking, but adds that Samsung has this new flash in production right now.
The new higher capacity dies enable 1.4x greater density per wafer (realize that this does not mean more dies per wafer, as the image incorrectly suggests).
The power consumption improvements (right) were in the press release, however the speed improvements (left) were not. A 2x improvement in per-die speeds means that Samsung should not see a performance hit if they migrate their existing 128Gbit TLC VNAND SSDs over to these new 256Gbit parts. Speaking of which...
Not only is this new VNAND being produced *this month*, Samsung is retrofitting their 850 EVO line with the new parts. Again, we expect no performance delta but will likely retest these new versions just to double check for any outliers.
There was some more great info from the keynote, but that will appear in another post later today.
Subject: Storage | August 10, 2015 - 03:07 PM | Jeremy Hellstrom
Tagged: adata, XPG SX930, JMF670H
ADATA's new XPG SX930 series is aimed at enthusiasts on a budget, the 120GB is about $65, the 240GB at $110 and the 480GB at $200. The SSDs use the JMicron JMF670H controller, not one we have seen before and they also have a pseudo SLC cache which grows with the size of the drive from 4GB to 8GB to 16GB for the 480GB model. The SSD Review tested out all three drives and found that the advertised speeds of 550MB/s read and 460MB/s write were more or less accurate and the drives did fairly well in their other tests as well. If you need more speedy storage and are on a budget you should check out their full review.
"ADATA has memory products for all sections of the market, from consumer to industrial. As of late they have released a new consumer SSD, the XPG SX930. It is marketed towards the gamer and overclocker crowd at a pretty competitive price point."
Here are some more Storage reviews from around the web:
- SK hynix Canvas SC300 512GB SSD @ Kitguru
- Samsung 850 EVO 2TB SSD Review @ NikKTech
- MyDigitalSSD 240GB SATA m.2 SSD @ Benchmark Reviews
- Silicon Power Blaze B50 128GB USB 3.0 Flash Drive Review @ NikKTech
- QNAP TS-453mini NAS Review @ Madshrimps
- Seagate Enterprise Capacity 2.5 HDD V3 2TB SATA III Review @ NikKTech
- Silicon Power Armor A65 1TB USB 3.0 Hard Disk @ eTeknix
- Seagate Backup Plus Slim @ HardwareHeaven
- Synology DiskStation DS1515 @ Legion Hardware
- QNAP TS-453 Mini 4-Bay Stylish and Quiet Vertical NAS @ eTeknix
Subject: Storage | August 6, 2015 - 06:37 PM | Allyn Malventano
Tagged: SSD 750, ssd, pcie, NVMe, Intel
A new 800GB SKU of the Intel SSD 750 Series of PCIe SSDs was hinted at with the Skylake launch press materials, and it appears to have been a reality:
They may not be on the shelves yet, but appearing on ARK is a pretty good indicator that these are coming soon. We don't have pricing yet, but I would suspect a cost/GB closer to the 1.2TB model than to the 400GB model, which should come in at around $700. Performance sees a slight hit for the 800GB model, likely since this is an 'uneven' number of dies for the design of the SSD DC P3500 line it was based on.
Which would you prefer - a single 800GB or a pair of 400GB SSD 750's in a RAID (now that it is possible)?
A quick look at storage
** This piece has been updated to reflect changes since first posting. See page two for PCIe RAID results! **
Our Intel Skylake launch coverage is intense! Make sure you hit up all the stories and videos that are interesting for you!
- The Intel Core i7-6700K Review - Skylake First for Enthusiasts (Video)
- Skylake vs. Sandy Bridge: Discrete GPU Showdown (Video)
- ASUS Z170-A Motherboard Preview
- Intel Skylake / Z170 Rapid Storage Technology Tested - PCIe and SATA RAID
When I saw the small amount of press information provided with the launch of Intel Skylake, I was both surprised and impressed. The new Z170 chipset was going to have an upgraded DMI link, nearly doubling throughput. DMI has, for a long time, been suspected as the reason Intel SATA controllers have pegged at ~1.8 GB/sec, which limits the effectiveness of a RAID with more than 3 SSDs. Improved DMI throughput could enable the possibility of a 6-SSD RAID-0 that exceeds 3GB/sec, which would compete with PCIe SSDs.
Speaking of PCIe SSDs, that’s the other big addition to Z170. Intel’s Rapid Storage Technology was going to be expanded to include PCIe (even NVMe) SSDs, with the caveat that they must be physically connected to PCIe lanes falling under the DMI-connected chipset. This is not as big of as issue as you might think, as Skylake does not have 28 or 40 PCIe lanes as seen with X99 solutions. Z170 motherboards only have to route 16 PCIe lanes from the CPU to either two (8x8) or three (8x4x4) PCIe slots, and the remaining slots must all hang off of the chipset. This includes the PCIe portion of M.2 and SATA Express devices.
Subject: Storage | July 28, 2015 - 12:41 PM | Allyn Malventano
Tagged: XPoint, non-volatile RAM, micron, memory, Intel
Everyone that reads SSD reviews knows that NAND Flash memory comes with advantages and disadvantages. The cost is relatively good as compared to RAM, and the data remains even with power removed (non-volatile), but there are penalties in the relatively slow programming (write) speeds. To help solve this, today Intel and Micron jointly launched a new type of memory technology.
XPoint (spoken 'cross point') is a new class of memory technology with some amazing characteristics. 10x the density (vs. DRAM), 1000x the speed, and most importantly, 1000x the endurance as compared to current NAND Flash technology.
128Gb XPoint memory dies, currently being made by Intel / Micron, are of a similar capacity to current generation NAND dies. This is impressive for a first generation part, especially since it is physically smaller than a current gen NAND die of the same capacity.
Intel stated that the method used to store the bits is vastly different from what is being used in NAND flash memory today. Intel stated that the 'whole cell' properties change as a bit is being programmed, and that the fundamental physics involved is different, and that it is writable in small amounts (NAND flash must be erased in large blocks). While they did not specifically state it, it looks to be phase change memory (*edit* at the Q&A Intel stated this is not Phase Change). The cost of this technology should end up falling somewhere between the cost of DRAM and NAND Flash.
3D XPoint memory is already being produced at the Intel / Micron Flash Technology plant at Lehi, Utah. We toured this facility a few years ago.
Intel and Micron stated that this technology is coming very soon. 2016 was stated as a launch year, and there was a wafer shown to us on stage:
You know I'm a sucker for good wafer / die photos. As soon as this session breaks I'll get a better shot!
There will be more analysis to follow on this exciting new technology, but for now I need to run to a Q&A meeting with the engineers who worked on it. Feel free to throw some questions in the comments and I'll answer what I can!
*edit* - here's a die shot:
Added note - this wafer was manufactured on a 20nm process, and consists of a 2-layer matrix. Future versions should scale with additional layers to achieve higher capacities.
AMD is exploring alternate product routes to raise their income and the latest seems to be the Puma powered QNAP TVS-x63. It is a four bay NAS which is powered by the 2.4GHz AMD GX424-CC SoC which happens to have a 28 stream processor GCN Radeon clocked at 497 MHz. It has a pair of gigabit ports with an optional add-in card offering a single 10Gb or two additional 1Gb ports, though that will raise you above the cost of the $630 base model. Bjorn3d found the power consumption to be higher than the competition but the overall operation was flawless.
"The QNAP TVS-x63 marked the world’s first NAS featuring AMD processor. AMD’s new strategy is targeting the markets with high profit return and the company is returning to the server market. NAS, by extension, is like a small scale server, so it makes sense to see AMD putting their processors into these devices."
Here are some more Storage reviews from around the web:
- HGST Ultrastar He8 HDD RAID Review (8x8TB) - 64TB Analysis on the Adaptec 8805 RAID Adapter @ The SSD Review
- Asustor AS5102T @ techPowerUp
- Synology DiskStation DS715 2-Bay Value NAS @ eTeknix
- CineRAID CR-H236 Dual SATA Drive Docking Station Review @ NikKTech
- OCZ TRION 100 480GB
- OCZ Vector 180 240GB SSD Review @ Madshrimps
- Micron M510DC SSD @ The SSD Review
- Kingston HyperX Predator 480 GiB vs. Kingston HyperX Savage 480 GiB SSD Review @ Hardware Secrets
- Kingston HyperX Savage 240GB SSD Review @ NikKTech
- Samsung Pro Plus microSDHC 32GB and EVO Plus 128GB microSDXC @ The SSD Review
Subject: Storage | July 20, 2015 - 01:01 PM | Allyn Malventano
Tagged: vnand, ssd, SM863, sata, Samsung, PM863
...you get the Samsung PM863 and SM863 lines of enterprise SSDs! These 2.5" SATA units were just announced, and as we suspected after reviewing the new 2TB 850 EVO and Pro, these new models can include even more flash packages, dramatically increasing the flash capacity. Here is a breakdown of the launch pricing and capacities:
SM863 (2-bit MLC VNAND):
- 120GB - $140 ($1.17/GB)
- 240GB - $180 ($0.75/GB)
- 480GB - $330 ($0.69/GB)
- 960GB -
$870 ($0.91/GB) < possible typo$640 ($0.67/GB)
- 1.92TB - $1260 ($0.66/GB)
PM863 (3-bit MLC VNAND):
- 120GB - $125 ($1.04/GB)
- 240GB - $160 ($0.67/GB)
- 480GB - $290 ($0.60/GB)
- 960GB - $550 ($0.57/GB)
- 1.92TB - $1100 ($0.57/GB)
- 3.84TB - $2200 ($0.57/GB)
These are some very competitive prices for enterprise SSDs, and the fact that the TLC version can cram just under 4TB into a 7mm 2.5" form factor is just astounding. The MLC version capacities appear to still follow that of the 850 Pro, minus a bit of available capacity due to higher levels of over-provisioning.
More impressive is the endurance ratings of these SSDs. The SM863 line is rated (varying by capacity) from 770 Terabytes Written (TBW) to an astonishing 12,320 TBW for the 1.92TB model! That's over 12 Petabytes! The PM863 is rated lower as it is TLC based, but is still no slouch as it ranges from 170 to 5,600 TBW for the 3.84TB capacity. The SM863 carries a 5-year warranty, while the PM863 drops that to 3-years.
We've been waiting to see Samsung's 32-layer VNAND appear in enterprise units for some time now, and look forward to testing them just as soon as we can get our hands on them!
Full press blast after the break.
Subject: Storage | July 9, 2015 - 04:37 PM | Jeremy Hellstrom
Tagged: Samsung, 850 EVO, 850 PRO, M600, micron, Sandisk Extreme Pro, ssd, roundup, sata
[H]ard|OCP has just posted a roundup of four affordable SATA SSDs to show which would be the best one to pick up as the majority of users are not able to afford an NVME PCIe SSD. The drives are all within $50 above or below $200, with the 850 PRO having the highest cost per gigabyte and the EVO the least. They test content creation and moving large files as well as synthetic benchmarks to come out with a ranking of the four drives which you can refer to if you will be shopping for storage in the near future. In comparison they use the G.SKILL Phoenix Blade to show off what the new technology can do, for those that can afford it.
"Despite the performance benefits, PCIe SSDs remain an expensive niche market. That means that most of us are not going to be loading up a high end system with PCIe SSDs. Most of us mere mortals will be using SATA SSDs. We tested some of the best SATA drives with enthusiast-friendly price tags."
Here are some more Storage reviews from around the web:
- OCZ Trion 100 Series Entry Level SSD @ [H]ard|OCP
- OCZ Trion 100 @ The SSD Review
- OCZ Trion 100 SSD @ HardwareHeaven
- OCZ Trion 100 240GB and 480GB @ Kitguru
- OCZ Trion 100 480GB & 960GB SSD Review @ Hardware Canucks
- OCZ Trion 100 480 GB @ techPowerUp
- ASUSTOR AS-5102T 2-bay NAS Review @ Madshrimps
Introduction, Specifications and Packaging
Since their acquisition by Toshiba in early 2014, OCZ has gradually transitioned their line of SSD products to include parts provided by their parent company. Existing products were switched over to Toshiba flash memory, and that transition went fairly smoothly, save the recent launch of their Vector 180 (which had a couple of issues noted in our review). After that release, we waited for the next release from OCZ, hoping for something fresh, and that appears to have just happened:
OCZ sent us a round of samples for their new OCZ Trion 100 SSD. This SSD was first teased at Computex 2015. This new model would not only use Toshiba sourced flash memory, it would also displace the OCZ / Indilinx Barefoot controller with Toshiba's own. Then named 'Alishan', this is now officially called the 'Toshiba Controller TC58'. As we found out during Computex, this controller employs Toshiba's proprietary Quadruple Swing-By Code (QSBC) error correction technology:
Error correction tech gets very wordy, windy, and technical and does so very quickly, so I'll do my best to simplify things. Error correction is basically some information interleaved within the data stored on a given medium. Pretty much everything uses it in some form or another. Some Those 700MB CD-R's you used to burn could physically hold over 1GB of data, but all of that extra 'unavailable' space was error correction necessary to deal with the possible scratches and dust over time. Hard drives do the same sort of thing, with recent changes to how the data is interleaved. Early flash memory employed the same sort of simple error correction techniques initially, but advances in understanding of flash memory error modes have led to advances in flash-specific error correction techniques. More advanced algorithms require more advanced math that may not easily lend itself to hardware acceleration. Referencing the above graphic, BCH is simple to perform when needed, while LDPC is known to be more CPU (read SSD controller CPU) intensive. Toshiba's proprietary QSB tech claims to be 8x more capable of correcting errors, but what don't know what, if any, performance penalty exists on account of it.
We will revisit this topic a bit later in the review, but for now lets focus on the other things we know about the Trion 100. The easiest way to explain it is this is essentially Toshiba's answer to the Samsung EVO series of SSDs. This Toshiba flash is configured in a similar fashion, meaning the bulk of it operates in TLC mode, while a portion is segmented off and operates as a faster SLC-mode cache. Writes first go to the SLC area and are purged to TLC in the background during idle time. Continuous writes exceeding the SLC cache size will drop to the write speed of the TLC flash.