Apotop S3C SSD, Silicon Motion's new controller for less than $0.50/GB

Subject: Storage | September 12, 2014 - 02:30 PM |
Tagged: SM2246EN, S3C, mlc, Apotop

The Apotop S3C SSD uses the same controller as the Angelbird drive Al reviewed recently.  It uses synchronous MLC NAND with the 4 channel present on the Silicon Motion controller and is able to provide more than the specified 490 MB/s read and 275 MB/s write in some benchmarks.  It can often read faster than the wrk SSD but the writes cannot always keep up though it is not something likely to be noticeable in real usage scenarios.  The MSRP is very attractive with the 512GB model expected to be released at $200.  Silicon Motion is likely to start appearing in a lot more SSDs in the near future with this mix of price and performance.  Read the full review at Kitguru.

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"The new Apotop S3C SSD features the Silicon Motion 2246EN controller which we first reviewed in the Angelbird 512GB wrk SSD back in August this year. The controller impressed us, so we have already high hopes for the Apotop S3C."

Here are some more Storage reviews from around the web:

Storage

Source: KitGuru

SanDisk Launches 512GB SDXC Card for $799.99

Subject: General Tech, Storage | September 12, 2014 - 01:08 PM |
Tagged: sandisk, sdxc, sdhc, sd card, 512GB

Assuming your camera, card reader, or other device fully conforms to the SDXC standard, Sandisk has developed a half-terabyte (512GB) memory card. Beyond being gigantic, it can be read at up to 95 MB/s and written at up to 90 MB/s, which should be enough to stream 4K video. Sandisk claims that it is temperature proof, shock proof, water proof, and x-ray proof. It also comes with a lifetime warranty and "RescuePRO Deluxe" recovery software but, honestly, I expect people would just use PhotoRec or something.

It should be noted that the SDXC standard covers memory cards up to 2TB so it will probably not be too long before we see another standard get ratified. What is next? SDUC? SDYC? SDALLTHEC? Blah! This is why IEEE assigns names sequentially.

The SanDisk Extreme PRO UHS-I SDHC/SDXC 512GB memory card should be available now, although I cannot yet find them online, for $799.99 MSRP.

Source: SanDisk

IDF 2014: Through Silicon Via - Connecting memory dies without wires

Subject: Storage, Shows and Expos | September 10, 2014 - 12:34 PM |
Tagged: TSV, Through Silicon Via, memory, idf 2014, idf

If you're a general computer user, you might have never heard the term "Through Silicon Via". If you geek out on photos of chip dies and wafers, and how chips are assembled and packaged, you might have heard about it. Regardless of your current knowledge of TSV, it's about to be a thing that impacts all of you in the near future.

Let's go into a bit of background first. We're going to talk about how chips are packaged. Micron has an excellent video on the process here:

The part we are going to focus on appears at 1:31 in the above video:

die wiring.png

This is how chip dies are currently connected to the outside world. The dies are stacked (four high in the above pic) and a machine has to individually wire them to a substrate, which in turn communicates with the rest of the system. As you might imagine, things get more complex with this process as you stack more and more dies on top of each other:

chip stacking.png

16 layer die stack, pic courtesy NovaChips

...so we have these microchips with extremely small features, but to connect them we are limited to a relatively bulky process (called package-on-package). Stacking these flat planes of storage is a tricky thing to do, and one would naturally want to limit how many of those wires you need to connect. The catch is that those wires also equate to available throughput from the device (i.e. one wire per bit of a data bus). So, just how can we improve this method and increase data bus widths, throughput, etc?

Before I answer that, let me lead up to it by showing how flash memory has just taken a leap in performance. Samsung has recently made the jump to VNAND:

vnand crop--.png

By stacking flash memory cells vertically within a die, Samsung was able to make many advances in flash memory, simply because they had more room within each die. Because of the complexity of the process, they also had to revert back to an older (larger) feature size. That compromise meant that the capacity of each die is similar to current 2D NAND tech, but the bonus is speed, longevity, and power reduction advantages by using this new process.

I showed you the VNAND example because it bears a striking resemblance to what is now happening in the area of die stacking and packaging. Imagine if you could stack dies by punching holes straight through them and making the connections directly through the bottom of each die. As it turns out, that's actually a thing:

tsv cross section.png

Read on for more info about TSV!

IDF 2014: Western Digital announces new Ae HDD series for archival / cold storage

Subject: Storage, Shows and Expos | September 9, 2014 - 01:51 PM |
Tagged: WDC< Western Digital, WD, idf 2014, idf, hdd, Cold, Archival, Ae

We talked about helium filled, shingled HDD's from HGST earlier today. Helium may give you reduced power demands, but at the added expensive of hermetically sealed enclosures over conventional HDD's. Shingling may give added capacity, but at the expense of being forced into specific writing methods. Now we know Western Digital's angle into archival / cold storage:

WD_AE_PRN.jpg

..so instead of going with higher cost newer technologies, WD is taking their consumer products and making them more robust. They are also getting rid of the conventional thinking of capacity increments and are moving to 100GB increments. The idea is that once a large company or distributor has qualified a specific HDD model on their hardware, that model will stick around for a while, but be continued at an increased capacity as platter density yields increase over time. WD has also told me that capacities may even be mixed an matched within a 20-box of drives, so long as the average capacity matches the box label. This works in the field of archival / cold storage for a few reasons:

  • Archival storage systems generally do not use conventional RAID (where an entire array of matching capacity disks are spinning simultaneously). Drives are spun up and written to individually, or spun up individually to service the occasional read request. This saves power overall, and it also means the individual drives can vary in capacity with no ill effects.
  • Allowing for variable capacity binning helps WD ship more usable platters/drives overall (i.e. not rejecting drives that can't meet 6TB). This should drive overall costs down.
  • Increasing capacity by only a few hundred GB per drive turns into *huge* differences in cost when you scale that difference up to the number of drives you would need to handle a very large total capacity (i.e. Exabytes).

So the idea here is that WD is choosing to stick with what they do best, which they can potentially do for even cheaper than their consumer products. That said, this is really meant for enterprise use and not as a way for a home power user to save a few bucks on a half-dozen drives for their home NAS. You really need an infrastructure in place that can handle variable capacity drives seamlessly. While these drives do not employ SMR to get greater capacity, that may work out as a bonus, as writes can be performed in a way that all systems are currently compatible with (even though I suspect they will be tuned more for sequential write workloads).

Here's an illustration of this difference:

capacity 1.png

The 'old' method meant that drives on the left half of the above bell curve would have to be sold as 5TB units.

capacity 2.png

With the 'new' method, drives can be sold based on a spec closer to their actual capacity yield. For a given model, shipping capacities would increase as time goes on (top to bottom of the above graphic).

To further clarify what is meant by the term 'cold storage' - the data itself is cold, as in rarely if ever accessed:

tiers.png

Examples of this would be Facebook posts / images from months or years ago. That data may be rarely touched, but it needs to be accessible enough to be browsed to via the internet. The few second archival HDD spinup can handle this sort of thing, while a tape system would take far too long and would likely timeout that data request.

WD's Ae press blast after the break.

IDF 2014: HGST announces 3.2TB NVMe SSDs, shingled 10TB HDDs

Subject: Storage, Shows and Expos | September 9, 2014 - 11:00 AM |
Tagged: ssd, SMR, pcie, NVMe, idf 2014, idf, hgst, hdd, 10TB

It's the first day of IDF, so it's only natural that we see a bunch of non-IDF news start pouring out :). I'll kick them off with a few announcements from HGST. First item up is their new SN100 line of PCIe SSDs:

Ultrastar_SN100_Family_CMYK_Master.jpg

These are NVMe capable PCIe SSDs, available from 800GB to 3.2TB capacities and in (PCI-based - not SATA) 2.5" as well as half-height PCIe cards.

Next up is an expansion of their HelioSeal (Helium filled) drive line:

10TB_Market_applications_HR.jpg

Through the use of Shingled Magnetic Recording (SMR), HGST can make an even bigger improvement in storage densities. This does not come completely free, as due to the way SMR writes to the disk, it is primarily meant to be a sequential write / random access read storage device. Picture roofing shingles, but for hard drives. The tracks are slightly overlapped as they are written to disk. This increases density greatly, but writting to the middle of a shingled section is not possible without potentially overwriting two shingled tracks simultaneously. Think of it as CD-RW writing, but for hard disks. This tech is primarily geared towards 'cold storage', or data that is not actively being written. Think archival data. The ability to still read that data randomly and on demand makes these drives more appealing than retrieving that same data from tape-based archival methods.

Further details on the above releases is scarce at present, but we will keep you posted on further details as they develop.

Full press blast for the SN100 after the break.

Source: HGST

The summer SSD saturation; who reigns supreme?

Subject: Storage | September 5, 2014 - 12:06 PM |
Tagged: roundup, ssd

The SSD Review has put a quick overview of what they feel are the best SSDs released this summer in several classes, though picking the Intel P3700 PCIe SSD which is not slated for release until the end of September might be considered cheating a bit.  It is no surprise that the Samsung 850 Pro is the Enthusiast recommendation or the Crucial MX100 being recommended for those with a tight budget.  They also list M.2, mSATA and even USB recommendations so head on over to see the full round up.

629x378xSamsung-EVO-840-1TB-SSD-Serial-Number.jpg.pagespeed.ic_.ToKlrW9A1d.jpg

"Summer has come and gone, and over the past few months, there have been quite a few SSDs released into the market, and the question of, "Which SSD should I buy?" seems to still come up a lot around forums. Usually, there are some predetermined recommended favorite in each."

Here are some more Storage reviews from around the web:

Storage

Intel Sent Us a Containment Chamber with Parts Inside

Subject: Motherboards, Processors, Chipsets, Memory, Storage | September 5, 2014 - 10:21 AM |
Tagged: X99-Deluxe, SSD 730, Intel, Haswell-E, ddr4, asus, 5960X

Okay, I'll be the first to admit that I didn't know what I was getting into. When a couple of packages showed up at our office from Intel with claims that they wanted to showcase the new Haswell-E platform...I was confused. The setup was simple: turn on cameras and watch what happens.

So out of the box comes...a containment chamber. A carefully crafted, wood+paint concoction that includes lights, beeps, motors and platforms. 

Want to see how Intel promotes the Core i7-5960X and X99 platform? Check out this video below.

Our reviews of products included in this video:

Kingston's new HyperX Fury SSD; fool me once ...

Subject: Storage | August 27, 2014 - 01:09 PM |
Tagged: Sandforce SF2281, kingston, hyper x fury, 240gb

The Kingston Hyper X Fury 240GB is a slim SSD able to fit in the anemic ultrabooks though it does ship with a 2.5mm adapter for systems which are a little more meaty.  It uses the familiar Sandforce SF2281 controller and has changed to 128GBit ONFi 3 NAND from the previous ONFi 1 and 2 found in the V300 and the first Fury models.  This NAND is slower at reads but at the same time it is also significantly more rugged, with a endurance rating of 641TB worth of writes.  Hopefully Kingston learned from the reaction to its previous release of the V300 where review models were sent out with Toggle Mode NAND which was then switched for ONFi in the retail models.  Hardware Canucks saw decent performance at a price in line with the market, but it is up to you to decide if you are willing to forgive Kingston and purchase this new SSD.

board1_sm.jpg

"Kingston has long been known as a company that caters to budget-minded buyers and that's exactly what their new HyperX Fury SSD does. However, this time performance is also a priority."

Here are some more Storage reviews from around the web:

Storage

Seagate Ships World’s First 8TB Hard Drives

Subject: Storage | August 26, 2014 - 10:18 AM |
Tagged: Seagate, hdd, 8TB, Cleversafe

Sometime in the next quarter you will be able to pick up a 3.5" Seagate HDD with 8TB of storage on it.  These are aimed at data centres so they will have reduced power usage and are likely to have an impressive warranty attached, though that along with the high storage density will cost you a bit to purchase.  They do not offer much in the way of specifics, no platter count or cache size are listed in the PR but you can expect to find out more about them in the very near future. 

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CUPERTINO, Calif.--(BUSINESS WIRE)-- Seagate Technology plc (NASDAQ:STX), a world leader in storage solutions, today announced it is shipping the world’s first 8TB hard disk drive. An important step forward in storage, the 8TB hard disk drive provides scale-out data infrastructures with supersized-capacity, energy-efficiency and the lowest total cost of ownership (TCO) in the industry for cloud content, object storage and back-up disaster recovery storage.

“As our world becomes more mobile, the number of devices we use to create and consume data is driving an explosive growth in unstructured data. This places increased pressure on cloud builders to look for innovative ways to build cost-effective, high capacity storage for both private and cloud-based data centers,” said Scott Horn, Seagate vice president of marketing. “Seagate is poised to address this challenge by offering the world’s first 8TB HDD, a ground-breaking new solution for meeting the increased capacities needed to support the demand for high capacity storage in a world bursting with digital creation, consumption and long-term storage.”

A cornerstone for growing capacities in multiple applications, the 8TB hard drive delivers bulk data storage solutions for online content storage providing customers with the highest capacity density needed to address an ever increasing amount of unstructured data in an industry-standard 3.5-inch HDD. Providing up to 8TB in a single drive slot, the drive delivers maximum rack density, within an existing footprint, for the most efficient data center floor space usage possible.

“Public and private data centers are grappling with efficiently storing massive amounts of unstructured digital content,” said John Rydning, IDC’s research vice president for hard disk drives. “Seagate’s new 8TB HDD provides IT managers with a new option for improving storage density in the data center, thus helping them to tackle one of the largest and fastest growing data categories within enterprise storage economically.”

The 8TB hard disk drive increases system capacity using fewer components for increased system and staffing efficiencies while lowering power costs. With its low operating power consumption, the drive reliably conserves energy thereby reducing overall operating costs. Helping customers economically store data, it boasts the best Watts/GB for enterprise bulk data storage in the industry.

“Cleversafe is excited to once again partner with Seagate to deliver to our customers what is truly an innovative storage solution. Delivering absolute lowest cost/TB along with the performance and reliability required for massive scale applications, the new 8TB hard disk drive is ideal for meeting the needs of our enterprise and service provider customers who demand optimized hardware and the cost structure needed for massive scale out,” said Tom Shirley, senior vice president of research and development, Cleversafe.

Outfitted with enterprise-class reliability and support for archive workloads, it features multi-drive RV tolerance for consistent enterprise-class performance in high density environments. The drive also incorporates a proven SATA 6Gb/s interface for cost-effective, easy system integration in both private and public data centers.

Source: Seagate

Western Digital launches My Passport Metal Edition. 10th Anniversary Edition coming soon.

Subject: Storage | August 19, 2014 - 11:04 AM |
Tagged: western digital, portable, my passport, hdd

It's the 10th anniversary of Western Digital's My Passport line. To celebrate the occasion, they have launched an updated series:

mpultra_anniversary_1.jpg

The My Passport Ultra is available in 1TB and 2TB capacities, in both 'Metal' and 'Anniversary' Editions. The aluminum enclosures have an old-school radio-dial style finish. Both editions communicate over USB 3.0. While the Anniversary model comes out in September, the Metal Edition is now shipping at $89 for 1TB and $139 for 2TB.

Full press blast after the break:

AMD squeezes 240GB onto a Radeon

Subject: Storage | August 19, 2014 - 10:20 AM |
Tagged: amd, R7 240, ssd, radeon r7, barefoot 3, 19nm, toshiba mlc

We have seen the Barefoot 3 controller that AMD used in their first SSD before in OCZ's Vector 150, but not exactly like this.  The controller has been optimized to work with Toshiba's 19nm and is clocked slightly higher than the Vertex, though AMD will not say by how much.  That may account for the reduction in daily writes to 30GB/day and the warranty period to 4 years but as it is OCZ that is handling the warranty it is hard to determine the exact reasoning at this point.  On the plus side the MSRP is also reduced by $28 to $164 which still falls short of reaching the magic $0.50/GB mark.  The Tech Report tested the 240GB model here, as with other SSDs you can expect the 120GB to be slightly slower and the 480GB model to perform slightly faster.

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"AMD is getting into the storage business. The Radeon R7 SSD combines OCZ's Barefoot 3 controller with Toshiba's 19-nm MLC NAND, custom firmware, and a snazzy new sticker. We take a quick look to see what's what."

Here are some more Storage reviews from around the web:

Storage

Angelbird mixes style and performance with the wrk

Subject: Storage | August 18, 2014 - 12:15 PM |
Tagged: 512GB, angelbird, silicon motion, SMI, ssd, wrk

The simple look and extra care that went into manufacturing the Angelbird wrk SSDs show that they are serious about breaking into the market.  They have launched at a price slightly higher than average for the market but also bring the best sequential reads that Al has seen yet on a SATA drive.  Legit Reviews pried the drive open to reveal the Silicon Motion SM2246EN SATA III 6Gbps SSD controller previously seen on Corsair, PNY, ADATA and Transcend SSDs, along with MLC flash and 256MB of DDR3 cache.  In Legit Reviews testing of the drive they concluded that you should pick up the 256GB or 512GB model for the extra performance that it brings, you will not be disappointed.

angelbird-256gb-ssd-645x472.jpg

"Angelbird might night be a household name, but the Austrian company has been around in the SSD market for a number of years and has gotten a reputation for having high quality products. When we found out that Angelbird was coming out with a new SSD product like called the SSD wrk we couldn’t wait to get our hands on one of these drives and see what Angelbird has to offer consumers. Read on to find out!"

Here are some more Storage reviews from around the web:

Storage

The downwards Arc of flash prices; OCZ releases an SSD at $0.50/GB

Subject: Storage | August 13, 2014 - 11:38 AM |
Tagged: toshiba, ssd, sata, ocz, barefoot 3, ARC

Before even looking at the performance the real selling point of the new OCZ ARC 100 is the MSRP, the 240GB and 480GB models are slated to be released at $0.50/GB and will likely follow the usual trend of SSD prices and drop from there.  The drives use the Barefoot 3 controller, this one clocked slightly lower than the Vertex 460 but still capable of accelerating encryption.  Once The Tech Report set the drive up in their test bed the performance was almost on par with the Vertex 460 and other mid to high end SSDs, especially in comparison to the Crucial MX100.

Make sure to read Al's review as well, not just for the performance numbers but also an explanation of OCZ's warranty on this drive.

DSC04576.JPG

"OCZ's latest value SSD is priced at just $0.50 per gig, but it hangs with mid-range and even high-end drives in real-world and demanding workloads. It's also backed by an upgraded warranty and some impressive internal reliability data provided by OCZ. We take a closer look:"

Here are some more Storage reviews from around the web:

Storage

HGST refreshes it's Ultrastar Enterprise SSD line

Subject: Storage | August 8, 2014 - 11:16 AM |
Tagged: ultrastar, hgst, enterprise ssd, 20nm

HGST has refreshed their 12Gbit/s SAS series of Ultrastar SSDs with denser 20nm which has upped the read speeds though the writes do suffer somewhat.  As they are enterprise drives they have rather impressive lifespans, the 800GB is rated at 25 full drives writes/day for the length of the 5 year warranty.  They also offer encryption and erasure tools that are superior to enthusiast drives, along with a much higher price tag.  The Register also offers information on the new Ultrastar HDDs and a link to the spec sheets but as of yet we do not have any benchmarks.

hgst_ultrastar_ssds.jpg

"HGST has refreshed its Ultrastar enterprise SSD line, using denser 20nm NAND to replace the previous 25nm flash, doubling capacity, upping read performance but lowering write performance a tad in the process."

Here are some more Storage reviews from around the web:

Storage

Source: The Register

FMS 2014: Silicon Motion announces new SM2256 controller driving 1xnm TLC NAND

Subject: Storage, Shows and Expos | August 7, 2014 - 02:37 PM |
Tagged: ssd, SM2256, silicon motion, sata, FMS 2014, FMS

Silicon Motion has announced their SM2256 controller. We caught a glimpse of this new controller on the Flash Memory Summit show floor:

DSC04256.JPG

The big deal here is the fact that this controller is a complete drop-in solution that can drive multiple different types of flash, as seen below:

DSC04258.JPG

The SM2256 can drive all variants of TLC flash.

The controller itself looks to have decent specs, considering it is meant to drive 1xnm TLC flash. Just under 100k random 4k IOPS. Writes are understandably below the max saturation of SATA 6Gb/sec at 400MB/sec (writing to TLC is tricky!). There is also mention of Silicon Motion's NANDXtend Technology, which claims to add some extra ECC and DSP tech towards the end of increasing the ability to correct for bit errors in the flash (more likely as you venture into 8 bit per cell territory).

Press blast after the break:

FMS 2014: Phison announces new quad-core PS3110 SATA 6Gb/s SSD controller

Subject: Storage, Shows and Expos | August 7, 2014 - 02:25 PM |
Tagged: ssd, sata, PS5007, PS3110, phison, pcie, FMS 2014, FMS

At the Flash Memory Summit, Phison has updated their SSD controller lineup with a new quad-core SSD controller.

DSC04264.JPG

The PS3110 is capable of handling TLC as well as MLC flash, and the added horsepower lets it push as high as 100k IOPS.

DSC04260.JPG

Also seen was an upcoming PS5007 controller, capable of pushing PCIe 3.0 x4 SSDs at 300k IOPS and close to 3GB/sec sequential throughputs. While there were no actual devices on display of this new controller, we did spot the full specs:

DSC04263.JPG

Full press blast on the PS3110 appears after the break:

Source: Phison

FMS 2014: HGST Claims 3 Million IOPS and 1.5us Access Time SSD - updated with pics

Subject: General Tech, Storage, Shows and Expos | August 7, 2014 - 11:17 AM |
Tagged: ssd, phase change memory, PCM, hgst, FMS 2014, FMS

According to an HGST press release, the company will bring an SSD based on phase change memory to the 2014 Flash Memory Summit in Santa Clara, California. They claim that it will actually be at their booth, on the show floor, for two days (August 6th and 7th).

The device, which is not branded, connects via PCIe 2.0 x4. It is designed for speed. It is allegedly capable of 3 million IOPS, with just 1.5 microseconds required for a single access. For comparison, the 800GB Intel SSD DC P3700, recently reviewed by Allyn, had a dominating lead over the competitors that he tested. It was just shy of 250 thousand IOPS. This is, supposedly, about twelve times faster.

HGST_CompanyLogo.png

While it is based on a different technology than NAND, and thus not directly comparable, the PCM chips are apparently manufactured at 45nm. Regardless, that is significantly larger lithography than competing products. Intel is manufacturing their flash at 20nm, while Samsung managed to use a 30nm process for their recent V-NAND launch.

What does concern me is the capacity per chip. According to the press release, it is 1Gb per chip. That is about two orders of magnitude smaller than what NAND is pushing. That is, also, the only reference to capacity in the entire press release. It makes me wonder how small the total drive capacity will be, especially compared to RAM drives.

Of course, because it does not seem to be a marketed product yet, nothing about pricing or availability. It will almost definitely be aimed at the enterprise market, though (especially given HGST's track record).

*** Update from Allyn ***

I'm hijacking Scott's news post with photos of the actual PCM SSD, from the FMS show floor:

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DSC04124.JPG

In case you all are wondering, yes, it does in fact work:

DSC04125.JPG

DSC04126.JPG

DSC04127.JPG

One of the advantages of PCM is that it is addressed at smaller sections as compared to typical flash memory. This means you can see ~700k *single sector* random IOPS at QD=1. You can only pull off that sort of figure with extremely low IO latency. They only showed this output at their display, but ramping up QD > 1 should reasonably lead to the 3 million figure claimed in their release.

Source: HGST

FMS 2014: Marvell announces new 88SS1093 PCIe SSD controller

Subject: Storage, Shows and Expos | August 6, 2014 - 12:03 PM |
Tagged: ssd, pcie, NVMe, Marvell, FMS 2014, FMS, controller, 88SS1093

Marvell is notorious for being the first to bring a 6Gb/sec SATA controller to market, and they continue to do very well in that area. Their very capable 88SS9189 controller powers the Crucial MX100 and M550, as well as the ADATA SP920.

chip-shot-88SS1093.jpg

Today they have announced a newer controller, the 88SS1093. Despite the confusing numbering, the 88SS1093 has a PCIe 3.0 x4 host interface and will support the full NVMe protocol. The provided specs are on the light side, as performance of this controller will ultimately depend on the speed and parallelism of the attached flash, but its sure to be a decent performer. I suspect it would behave like their SATA part, only no longer bottlenecked by SATA 6Gb/sec speeds.

More to follow as I hope to see this controller in person on the exhibition hall (which opens to press in a few hours). Full press blast after the break.

*** Update ***

Apologies as there was no photo to be taken - Marvell had no booth at the exibition space at FMS.

Source: Marvell

FMS 2014: Samsung announces 3D TLC VNAND, Storage Intelligence initiative

Subject: Storage, Shows and Expos | August 5, 2014 - 01:19 PM |
Tagged: FMS, vnand, tlc, ssd, Samsung, FMS 2014, Flash Memory Summit

Just minutes ago at the Flash Memory Summit, Samsung announced the production of 32-layer TLC VNAND:

DSC03974.JPG

This is the key to production of a soon-to-be-released 850 EVO, which should bring the excellent performance of the 850 Pro, with the reduced cost benefit we saw with the previous generation 840 EVO. Here's what the progression to 3D VNAND looks like:

progression slide.png

3D TLC VNAND will look identical to the right most image in the above slide, but the difference will be that the charge stored has more variability. Given that Samsung's VNAND tech has more volume to store electrons when compared to competing 2D planar flash technology, it's a safe bet that this new TLC will come with higher endurance ratings than those other technologies. There is much more information on Samsung's VNAND technology on page 1 of our 850 Pro review. Be sure to check that out if you haven't already!

Another announcement made was more of an initiative, but a very interesting one at that. SSDs are generally dumb when it comes to coordinating with the host - in that there is virtually no coordination. An SSD has no idea which pieces of files were meant to be grouped together, etc (top half of this slide):

DSC04016.JPG

Stuff comes into the SSD and it puts it where it can based on its best guess as to how it should optimize those writes. What you'd want to have, ideally, is a more intelligent method of coordination between the host system and the SSD (more like the bottom half of the above slide). Samsung has been dabbling in the possibilities here and has seen some demonstrable gains to be made. In a system where they made the host software aware of the SSD flash space, and vice versa, they were able to significantly reduce write latency during high IOPS activity.

DSC04014.JPG

The key is that if the host / host software has more control over where and how data is stored on the SSD, the end result is a much more optimized write pattern, which ultimately boosts overall throughput and IOPS. We are still in the experimentation stage on Storage Intelligence, with more to follow as standards are developed and the industry pushes forward.

It might be a while before we see Storage Intelligence go mainstream, but I'm definitely eager to see 3D TLC VNAND hit the market, and now we know it's coming! More to follow in the coming days as we continue our live coverage of the Flash Memory Summit!

HGST Announces 12 Gbps SAS, Enterprise SSDs

Subject: General Tech, Storage | July 29, 2014 - 04:24 PM |
Tagged:

You might remember Allyn say that Samsung's 850 Pro is the closest to total saturation of SATA 6Gbps. The other option that we have seen is the bunch of SSDs that are attached to a PCI Express bus. HGST, formerly Hitachi Global Storage Technologies, has just SAS'd back (that was a terrible pun... which I refuse to apologize for) with a Serial Attached SCSI 12 Gbps model (pdf link). They claim a maximum read throughput of 1100 MB/s, with 64K chunks, and 130,000 IOPS, with 4K random accesses.

HGST-12gb-SSD.jpg

The drives will be based on Intel 20nm enterprise-grade NAND with two bits per memory cell (MLC). Its durability is rated at 25 full driver writes per day for 5 years. Models will range from 100GB, all the way up to 1600GB (1.6TB).

While I am limited to Google Translate, there does not appear to be any price or availability information provided. They are enterprise drives, however, so I expect it to be above typical consumer drives.