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Subject: Storage | November 20, 2017 - 10:56 PM | Allyn Malventano
Tagged: Z-NAND, SZ985, slc, Samsung, P4800X, nand, Intel, flash
We haven't heard much about Samsung's 'XPoint Killer' Z-NAND since Flash Memory Summit 2017, but now we have a bit more to go on:
Yes, actual specs. In print. Not bad either, considering the Samsung SZ985 appears to offer a bus-saturating 3.2GB/s for reads and writes. The 30 DWPD figure matches Intel's P4800X, which is impressive given Samsung's part operates on flash derived from their V-NAND line (but operating in a different mode). The most important figures here are latency, so let's focus there for a bit:
While the SZ985 runs at ~1/3rd the latency of Samsung's own NAND SSDs, it has roughly double the latency of the P4800X. For the moment that is actually not as bad as it seems as it takes a fair amount of platform optimization to see the full performance benefits of optane, and operating slightly higher on the latency spectrum helps negate the negative impacts of incorrectly optimized platforms:
Source: Shrout Research
As you can see above, operating at slightly higher latencies, while netting lower overall performance, does lessen the sting of platform induced IRQ latency penalties.
Now to discuss costs. While we don't have any hard figures, we do have the above slide from FMS 2017, where Samsung stressed that they are trying to get the costs of Z-NAND down while keeping latencies as low as possible.
Image Source: ExtremeTech
Samsung backed up their performance claims with a Technology Brief (available here), which showed decent performance gains and cited use cases paralleling those we've seen used by Intel. The takeaway here is that Samsung *may* be able to compete with the Intel P4800X in a similar performance bracket - not matching the performance but perhaps beating it on cost. The big gotcha is that we have yet to see a single Samsung NVMe Enterprise SSD come through our labs for testing, or anywhere on the market for that matter, so take these sorts of announcements with a grain of salt until we see these products gain broader adoption/distribution.
Subject: Storage | November 15, 2017 - 09:59 PM | Allyn Malventano
Tagged: NVDIMM, XPoint, 3D XPoint, 32GB, NVDIMM-N, NVDIMM-F, NVDIMM-P, DIMM
We're finally starting to see NVDIMM materialize beyond the unobtanium. Micron recently announced 32GB NVDIMM-N:
These come with 32GB of DRAM plus 64GB of SLC NAND flash.
These are in the NVDIMM-N form factor and can offer some very impressive latency improvements over other non-volatile storage methods.
Next up is Intel, who recently presented at the UBS Global Technology Conference:
We've seen Intel's Optane in many different forms, and now it looks like we finally have a date for 3D XPoint DIMMs - 2nd half of 2018! There are lots of hurdles to overcome as the JEDEC spec is not yet finalized (and might not be by the time this launches). Motherboard and BIOS support also needs to be more widely adopted for this to take off as well.
Don't expect this to be in your desktop machine anytime soon, but one can hope!
Press blast for the Micron 32GB NVDIMM-N appears after the break.
Subject: Storage | November 6, 2017 - 03:22 PM | Jeremy Hellstrom
Tagged: crucial, Momentum Cache, NVMe, Crucial Storage Executive
The SSD Review noticed something very interesting in the latest update to Crucial's Storage Executive software, the Momentum Cache feature now works with a variety of non-Crucial NVMe SSDs. The software allows your system to turn part of your RAM into a cache so that reads and writes can initially be sent to that cache which results in improved performance thanks to RAM's significantly quicker response time. If you have a Crucial SSD installed as well as another NVMe SSD and are using the default Windows NVMe driver, you can set up caching on the non-Crucial SSD if you so desire. Stop by for a look at the performance impact as well as a list of the drives which have been successfully tested.
"Crucial’s Momentum Cache feature, part of Crucial Storage Executive, is unlocked for all NVMe SSDs, or at least the ones we have tested in our Z170 test system; the key here, of course, is that a compatible Crucial SSD must initially be on the system to enable this feature at all."
Here are some more Storage reviews from around the web:
- Patriot Hellfire 240GB @ Benchmark Reviews
- Team Group CARDEA Zero 240GB M2 SSD @ Guri of 3D
- HP S700 SSD Review @ OCC
- Western Digital (WD) My Cloud Home 6TB @ Kitguru
- Seagate IronWolf Pro 12TB SATA III HDD Review @ NikKTech
- Seagate BarraCuda Pro 12TB HDD @ Kitguru
Subject: Storage | October 12, 2017 - 02:34 PM | Jeremy Hellstrom
Tagged: tr200, toshiba, BiCS, Toshiba TC58
The Tech Report tested out the 460GB version of the Toshiba TR200 SSD which uses 64-layer BiCS 3D flash. It is not quite compliant with Ryan's Law, but an MSRP of $150 for this drive is quite affordable. The drive uses Toshiba's own TC58 controller and like many current budget drives it lacks a RAM cache, making do with a psuedo-SLC cache. Performance wise it came out about the same as the Trion 100, which is to say at the bottom of the SSD pack, but the Trion drive has a RAM cache which offers some hope for higher end models based on the same flash. Pop by for the full review and think about this as a stocking stuffer for anyone you like, who is still spinning rust.
"Toshiba's first client drive with BiCS flash inside is the entry-level TR200. Join us as we find out just how much storage performance you can get on a budget these days."
Here are some more Storage reviews from around the web:
Subject: Storage | October 11, 2017 - 11:16 PM | Allyn Malventano
Tagged: western digital, wdc, WD, STO, Spin Torque Oscillator, SMR, PMR, Microwave Assisted Magnetic Recording, microwave, MAMR, HAMR, FMR
Today Western Digital made a rather significant announcement in the field of HDD technology. We’ve previously talked about upcoming ways to increase the density of HDD storage, with the seeming vaporware Heat Assisted Magnetic Recording (HAMR) forever looming on the horizon, just out of reach.
WD, like others, have been researching HAMR as a possible way of increasing platter densities moving forward. They were even showing off prototypes of the technology back in 2013, but a prototype is a far cry from a production ready, fully reliable product. Seagate had been making stronger promises of HAMR, but since we are already 5 years into their 10-year prediction of 60TB HAMR HDDs (followed by further delays), it's not looking like we will see a production ready HAMR HDD model any time soon.
Ok, so HAMR is not viable for now, but what can we do? Seems WD has figured it out, and it's a technology they have been kicking around their labs for nearly a decade. Above we see the PMR limit of ~1.1 Terabits/square inch. SMR pushes that figure to 1.4, but we are running up against the so-called 'writeability limit', which is the point at which the write head / magnetic field is too small to overcome the paramagnetic threshold of the smaller magnetic domains of higher density media. We are used to hearing that the only way to raise that limit was to heat the media with a laser while writing (HAMR), but there is a different / better way - Microwave Assisted Magnetic Recording, or MAMR for short.
Don't let the 'microwave' part of the term fool you - we are not microwaving the media with sufficient energy to actually heat it. Instead, we are doing something *way* cooler. The slide above shows how smaller grain size (higher density) requires a stronger write field to reach sufficient energy levels to reliably store a bit of data. Now check out the next slide:
This is a lot to grasp but allow me to paraphrase greatly. Imagine a magnet with a north and south pole. If you came along with a stronger magnet and attempted to reverse its polarity by directly opposing the currently stored state, it's generally difficult to do so. Current HDD tech relies on the field being strong enough to overcome the stored polarity, but MAMR employs a Spin Torque Oscillator, which operates at a high enough frequency (20-40 GHz) to match the ferromagnetic resonance of the media. This causes a precession of the stored field (like a gyroscope) and tilts it about its vertical axis. This resonance adds the extra energy (in addition to the write field) needed to flip the field to the desired direction. What's amazing about this whole process is that thanks to the resonance effects, the STO can increase the effectiveness of the write field 3-4x while only consuming ~1/100th of the power compared to that needed to generate the write field. This reduction in the damping constant of the media is what will enable smaller magnetic domains, therefore higher platter densities in future MAMR-equipped HDDs.
One of the best things about this new tech is that it is just a simple addition to all of other technologies already in place today. Western Digital was already making their drive heads with an advanced 'damascene' process, silently introduced about three years ago. To oversimplify the description, damascene is a process that enables greater physical precision in the shape of the head, which helps increase density. What makes this process a bigger deal now is that it more easily enables integration of the Spin Torque Oscillator into the head assembly. Aside from this head-level change and another pair of leads to provide a very small drive current (~1-2mA), every other aspect of the drive is identical to what we have today. When it comes to a relatively radical change to how the writing can be accomplished at these upcoming higher densities, doing so without needing to change any of the other fundamental technologies of the drive is a good thing. By no change, I really mean no change - MAMR can be employed on current helium-filled drives. Even SMR.
Western Digital also slipped in another announcement, which is the shift from the older style 'nested actuator' (introduced with 2TB HDDs back in 2009), to a newer 'micro-actuator'. The newer actuator moves the articulation point much closer to the head compared to the previous technology, enabling even finer head tracking, ultimately resulting in increased track pitch. WD currently sits somewhere around 400 tracks per inch (TPI), but they hope to reach 1 million (!) thanks to this new tracking combined with MAMR and improved media chemistry.
Now this doesn't mean we will see a sudden influx of 40TB HDDs hitting the market next week. WD still has to scale up production of STO-enabled heads, and even after that is complete, the media technology still needs to catch up to the maximum capabilities of what MAMR can achieve (creating smaller magnetic domains on the disk surface, etc). Still, it's nice to know that there is a far simpler way to flip those stored bits around without having to resort to HAMR, which seems to be perpetually years away from production. Speaking of which, I'll leave you with WD's reliability comparison between their own HAMR and MAMR technologies. Which would you choose?
Oh yeah, and about that supposed SSD vs. HDD cost/GB crossover point. It may not be as soon as we previously thought:
Full press blast appears after the break.
Subject: Storage | October 5, 2017 - 01:37 AM | Tim Verry
Tagged: western digital, SMR, hgst, HelioSeal, big data, 14tb
Western Digital is raising the enterprise hard drive stakes once again with the announcement of a 14 TB 3.5” hard drive. The HGST branded Ultrastar Hs14 uses fourth generation HelioSeal and second generation host-managed SMR (shingled magnetic recording) to enable a 14 TB drive that is just as fast as its smaller capacity enterprise predecessors despite the impressive 1034 Gb/sq in areal density. Western Digital claims the new hard drive offers up 40% more capacity and twice the sequential write performance of its previous SMR drives.
The 3.5” SMR hard drive comes in SATA 6Gbps and SAS 12 Gbps flavors with both equipped with 512 MB cache, operating at 7200 RPM, and supporting maximum sustained transfer speeds of 233 MB/s. The enterprise drive is geared towards sequential writes and is intended to be the storage target for big data applications like Facebook, video streaming services, and research and financial workloads that generate absolutely massive amounts of raw data that needs to sit in archival storage but remain easily accessible (where tape is not as desirable). According to the data sheet (PDF), it is also aimed at bulk cloud storage and online backup as well as businesses storing compliance, audit, and regulatory records.
For those curious about Shingled Magnetic Recording (SMR), Allyn shared some thoughts on the technology here.
Western Digital rates the drive at 550 TB/year and supports the Hs14 with a five year warranty. The drive is currently being sampled to a small number of OEMs with wider availability to follow.
Subject: Storage | October 4, 2017 - 09:24 PM | Allyn Malventano
Tagged: x299, VROC, skylake-x, RAID-0, Optane, Intel, bootable, boot
We've been playing around a bit with Intel VROC lately. This new tech lets you create a RAID of NVMe SSDs connected directly to newer Intel Skylake-X CPUs, without the assistance of any additional chipset or other RAID controlling hardware on the X299 platform. While the technology is not fully rolled out, we did manage to get it working and test a few different array types as a secondary volume. One of the pieces of conflicting info we had been trying to clear up was can you boot from a VROC array without the currently unobtanium VROC key...
Well, it seems that question has been answered with our own tinkering. While there was absolutely no indication in the BIOS that our Optane Memory quad RAID-0 was bootable (the array is configurable but does not appear in the bootable devices list), I'm sitting here looking at Windows installed directly to a VROC array!
Important relevant screenshots below:
For the moment this will only work with Intel SSDs, but Intel's VROC FAQ states that 'selected third-party SSDs' will be supported, but is unclear if that includes bootability (future support changes would come as BIOS updates since they must be applied at the CPU level). We're still digging into VROC as well as AMD's RAID implementation. Much more to follow, so stay tuned!
Subject: Storage | September 29, 2017 - 03:11 PM | Jeremy Hellstrom
Tagged: adata, SD700, portable storage, ssd
The SD700 comes in 256GB, 512GB, and 1TB varieties and oddly enough the black models cost $5 less than the tent caterpillar gut coloured ones. The drives are USB 3.1 Gen 1, with transfer speeds hitting the expected rate in The Tech Reports testing; still a far cry from a Gen 2 drive however. The pricing is attractive at only a tiny bit more than an internal drive of the same capacity, however there is no way an internal SSD would stand up to the abuse which the SD700 shrugs off. If you are in need of large sized external storage than can be tossed into a bag and forgotten about until it is needed then check this review out.
"Adata has put together an external version of its SU800 SSD. Clad in water- and shock-resistant rubber and plastic, the SD700 wants to be the portable drive of choice for the active data hoarder. Join us as we see how well it can handle our test suite."
Here are some more Storage reviews from around the web:
Subject: Storage | September 18, 2017 - 09:35 PM | Tim Verry
Tagged: western digital, wd gold, TLER, enterprise, datacenter
Western Digital has a new mechanical hard drive for your treasure trove of digital data. Utilizing fourth generation HelioSeal technology and eight PMR platters to fit 1.5TB of data per platter, the WD121KRYZ has a capacity of 12TB and features quite a few enterprise technologies to improve reliability and reduce data loss.
The WD Gold 12TB drive is an eight-platter 3.5" drive spinning at 7200RPM paired with 256 MB of cache and featuring a SATA III interface. The helium sealed hard drive uses a dual stage actuator head positioning system that can adjust the fly height of the read-write heads in real time. Enterprise focused features include RAFF to monitor and correct linear and rotational vibrations and TLER to protect the integrity of a RAID array. The vibration monitoring Is overkill for a desktop PC or even a NAS, but can be useful in a datacenter environment where hundreds of drives are packed together. The time limited error recovery technology ensures that bad sectors do not cause a RAID rebuild to fail (and Allyn has a more in-depth explanation here).
The WD Gold 12TB is built for continuous operation with an annual workload rate of 550TB running 24/7 with a 5-year warranty and 2.5 million hours MTBF. The maximum sustained transfer is 255 MB/s. The digital hoarder’s dream is available for $521.99 from Western Digital which works out to $0.0435 / GB. If you do not want to wait for a Red Pro 12TB variant (there does not appear to be one available and WD only recently launched 10TB models), the Gold series drive might be a good option with a better warranty and lower error rate.
Subject: General Tech, Storage | September 14, 2017 - 10:32 AM | Tim Verry
Tagged: western digital, toshiba, nand, flash memory, bain capital
Toshiba remains in a financial crisis in the aftermath of massive losses in its Westinghouse US Nuclear power division and has been attempting to sell off its still very much profitable NAND flash manufacturing business to compensate and right the company to avoid being delisted from the Tokyo Stock Exchange. Unfortunately for Toshiba it has now missed three target dates for selling off the business. Not for lack of suitors, but primarily because of legal issues resulting from anti-trust concerns as well as legal battles brought by Western Digital – who Toshiba is in a joint venture with for flash manufacturing in Japan – to attempt to prevent the sale.
Jumping to the present, Toshiba has decided to proceed with the negotiations with an investment group led by Bain Capital despite disappointment (and more legal objections) from Western Digital who tried to block similar negotiations back in June. On Wednesday, it was revealed that Toshiba had signed a “memorandum of understanding” and is engaging in private talks to negotiate the sale with an investment group led by Bain Capital and including SK Hynix (who is allegedly only providing financing at this point and not going after a stake in the business to try to avoid further delaying the sale from increased anti-trust red tape), Apple, Dell, Seagate, and two Japanese government controlled entities known as Innovation Network Corp and Development Bank of Japan (again, Bain Capital is offering them the chance to invest post any WD concessions and legal battles in the business to improve chances of the sale going through). As the preferred (by Toshiba) buyer, the Bain Capital-lead group deal is reportedly worth nearly 2.4 trillion Yen ($22 billion USD) including $1.8 billion earmarked for infrastructure. The company expects come to an agreement in late September and is hoping that it will be able to finalize the sale by March so that it can avoid reporting negative net worth and risking being de-listed from the Tokyo Stock Exchange and being cut off from a huge swath of public investors and capital.
Due to the negotiations being private, details are not readily available yet. It is not clear whether Toshiba will be able to pull it off or what the implications will be for the market if it does. (With Toshiba being the world’s second largest flash memory supplier, whoever ends up acquiring the company is going to have a lot of influence on the market and flash technology R&D.) It certainly seems Toshiba’s battle to right itself is going to continue into next year and Western Digital is not going to make it easy. The US-based WD stated:
“We are disappointed that Toshiba would take this action. Our goal has been — and remains — to reach a mutually beneficial outcome that satisfies the needs of Toshiba and its stakeholders.”
A California court has reportedly ordered Toshiba to give Western Digital two weeks’ notice of any deal with the consortium and its two previous arbitration requests through ICC are still pending resolution. Barrons reports that Toshiba may convince WDC to allow the sale if it gives its joint venture partner enough concessions such as an assured long term NAND supply contract and agreed participation in joint Fab projects that would protect SanDisk's contractual rights. Other interested parties for the sale include Foxconn and Western Digital itself. Perhaps SoftBank or the $100 Billion Vision Fund will come in and scoop it up as well.
[Opinions follow heh] I am interested to see how it all will eventually shake out. It remains less than ideal to see Toshiba must sell it off and have the market possibly lose a big flash memory player as the market share power gets more consolidated if it does get picked up by an existing memory manufacturer (see: hard drives, flash memory seems to be going through the same consolidation of companies from lots of little players into fewer bigger ones). I am not certain on the deal specifics as far as ownership and control of TMC and any cash only vs equity splits but with Japanese investors as part of all three bidding / competing consortiums it seems at least part of the business (if only money from it if not voting power) will remain rooted in Japan even if not under the Toshiba brand.
- Apple Is in Talks With Bain for Toshiba Chips Business (VIDEO) @ Bloomberg
- Toshiba to focus on chip talks with Bain, but doesn't rule out other suitors @ Reuters
- Toshiba Says It Favors Bain Group’s Bid for Microchip Business @ NYT
- Toshiba agrees sale with Bain Capital over protests @ ABC News
- Group Including Apple, Dell Moves to Buy Toshiba’s Chip Business @ WSJ (requires subscription)
- Toshiba Plans To Spin Off Storage Business, Sell 20% Of New Company @ PC Perspective
This drive might not be the best choice for an upgrade to a machine you build yourself, however as it is compatible with HP's Software Pre-installation Environment it makes a great deal of sense for an HP owner. Benchmark Reviews tested the drive out and were impressed with the performance they saw; it did not match the somewhat inflated claims made below but it performed in line with the majority of the competition out there. Take a look at the specific results in the full review.
"HP suggests top speeds up to 570 MB/s for reads and 525 MB/s writes from their 1TB SSD S700 PRO, which utilizes 3D NAND to deliver impressive storage density and reliability. In this article for Benchmark Reviews, we test the 1TB HP SSD S700 PRO (2.5″ SATA model 2LU81AA#ABL) against other solid state drive competition."
Here are some more Storage reviews from around the web:
- HP S700 Pro 1 TB SSD @ Guru of 3D
- Samsung 960 EVO 1TB M.2 NVMe SSD Review @ NikKTech
- Crucial BX300 480GB SSD @ Guru of 3D
- Toshiba N300 6TB High Reliability Hard Drive For NAS Review @ NikKTech
- QNAP TS-453B 4-bay NAS @ techPowerUp
Subject: Storage | August 16, 2017 - 04:03 PM | Jeremy Hellstrom
Tagged: USB 3.1 gen 2, T5, Samsung, portable, 500gb, 2TB
Hopefully Samsung changes its naming schemes before we hit T1000 but for now, as many people know a T5 is stronger than a T3. If you missed Al's review, you should take a peek before heading to The Tech Report to benefit from his wisdom. With portable drives, or most drives for that matter, the metric that we care the most about is real world usage which is what Robobench is intended for. In order to properly test this USB 3.1 Gen 2 drive, TR picked up an addin card with the most common Gen 2 chip, the ASMedia ASM1142 controller and tested the transfer speeds for both compressible and non-compressible data. Drop by for a look at how the Samsung T5 performed.
"Samsung has refreshed its portable SSD lineup with 64-layer V-NAND and an aluminum unibody. We take the new T5 external for a spin to see if it lives up to the legacy of the T1 and T3."
Here are some more Storage reviews from around the web:
- Samsung Portable SSD T5 @ The SSD Review
- Samsung T5 Portable SSD @ Guru of 3D
- Corsair Neutron NX500 NVMe SSD @ The SSD Review
- Corsair Neutron NX500 800GB SSD @ Kitguru
- The 10TB WD Red @ The SSD Review
Subject: Storage | August 14, 2017 - 08:09 AM | Allyn Malventano
Tagged: P4800X, XPoint, NVMe, HHHL, Optane, Intel, ssd, DC
We reviewed the Intel P4800X - Intel's first 3D XPoint SSD, back in April of this year. The one thing missing from that review was product pictures. Sure we had stock photos, but we did not have the product in hand due to the extremely limited number of samples and the need for Intel to be able to make more real-time updates to the hardware based on our feedback during the testing process (reviewers making hardware better FTW!). After the reviews were done, sample priority shifted to the software vendors who needed time to further develop their code bases to take better advantage of the very low latency that Optane can offer. One of those companies is VMware, and one of our friends from over there was able to get some tinker time with one of their samples.
Paul whipped up a few videos showing the installation process as well as timing a server boot directly from the P4800X (something we could not do in our review since we were testing on a remote server). I highly encourage those interested in the P4800X (and the upcoming consumer versions of the same) to check out the article on TinkerTry. I also recommend those wanting to know what Optane / XPoint is and how it works to check out our article here.
Subject: Storage, Shows and Expos | August 9, 2017 - 09:19 PM | Allyn Malventano
Tagged: FMS 2017, ssd, S4600, S4500, ruler, pcie, NVMe, Intel, EDSFF
Yesterday we saw Samsung introduce their 'NGSFF' form factor during yesterday's keynote. Intel has been at work on a similar standard, this one named EDSFF (Enterprise & Datacenter Storage Form Factor), with the simpler working name as 'Ruler', mainly because it bears a resemblance:
Note that the etching states P4500 Series. P4500 was launched a couple of days ago and is Intel's next generation NVMe PCIe Datacenter SSD. It's available in the typical form factors (U.2, HHHL), but this new Ruler form factor contains the exact same 12 channel controller and flash counts, only arranged differently.
SFF-TA-1002 connector (aka 'Gen-Z'), shown next to an AA battery for scale. This connector spec is electrically rated for speeds up to 4th and 5th generation PCIe, so future proofing was definitely a consideration here. In short, this is a beefed up M.2 style connector that can handle more throughput and also has a few additional pins to support remote power and power-loss-protection (capacitors outside the Ruler), as well as support for activity LEDs, etc.
Here is a slide showing the layout of the Ruler. 36 flash packages can be installed, with the possibility of pushing that figure to 42.
Thermals were a main consideration in the design, and the increased surface area compared to U.2 designs (with stacked PCBs) make for far cooler operation.
Intel's play here is fitting as much flash as possible into a 1U chassis. 1PB in a 1U is definitely a bold claim, but absolutely doable in the near future.
I'll leave you with the quick sniper shot I grabbed of their demo system. I'll be posting more details on the P4500 and P4600 series products later this week (remember, same guts as the Ruler), so stay tuned!
Subject: Storage | August 8, 2017 - 05:57 PM | Jeremy Hellstrom
Tagged: thunderbolt 3, NAS, LaCie, big12, 96TB
The big12 NAS device from LaCie comes in 48TB, 72TB, 96TB and 120TB varieties, all having a dozen 3.5" bays for your drives. The device stands 447x161x237mm which is somewhat larger than the Ruler drive Intel just announced and is 17.6kg fully loaded. It will connect via Thunderbolt 3 and supports RAID 0/1/6/10/50/60. Just because it is loaded with HDDs doesn't mean it is a slowpoke, KitGuru measure speeds of 2287MB/s for RAID 0 and 2231MB/s for RAID 5, impressive by any means. The price is also impressively high, however the speed and quality of the RAID software installed in the device makes it desirable for those who need a serious storage solution.
"LaCie’s 12big is the current flagship of the company’s professional range of external drives and if you are in the market for huge amounts of capacity and very, very fast data transfer rates then the 12big might be just the thing you are looking for…..but beware, you will need deep pockets – the 96Tb version we review today costs close to £8,300."
Here are some more Storage reviews from around the web:
- HP SSD S700 PRO @ benchmark Reviews
- WD Blue 3D NAND 500GB @ Kitguru
- Kingston DCP1000 NVMe SSD Enthusiast Testing in RAID 0 @ The SSD Review
- Seagate IronWolf Pro 10TB SATA III HDD Review @ NikKTech
Subject: Storage, Shows and Expos | August 8, 2017 - 05:37 PM | Allyn Malventano
Tagged: z-ssd, vnand, V-NAND, Samsung, QLC, FMS 2017, 64-Layer, 3d, 32TB, 1Tbit
As is typically the case for Flash Memory Summit, the Samsung keynote was chock full of goodies:
Samsung kicked off by stating there are a good 5 years of revisions left in store for their V-NAND line, each with a corresponding increase in speed and capacity.
While V-NAND V4 was 64-layer TLC, V5 is a move to QLC, bringing per die capacity to 1Tbit (128 GB per die).
If you were to stack 32 of these new V5 dies per package, and do so in a large enough 2.5" housing, that brings the maximum capacity of such a device to a whopping 128TB!
Samsung also discussed a V2 of their Z-NAND, moving from SLC to MLC while only adding 2-3 us of latency per request. Z-NAND is basically a quicker version of NAND flash designed to compete with 3D XPoint.
M.2 SSDs started life with the working title of NGFF. Fed up with the limitations of this client-intended form factor for the enterprise, Samsung is pushing a slightly larger NGSFF form factor that supports higher capacities per device. Samsung claimed a PM983 NGSFF SSD will hold 16TB, a 1U chassis full of the same 576TB, and a 2U chassis pushing that figure to 1.15PB.
Last up is 'Key Value'. This approach allows the flash to be accessed more directly by the application layer, enabling more efficient use of the flash and therefore higher overall performance.
There were more points brought up that we will be covering later on, but for now here is the full press release that went out during the keynote: (after the break)
Subject: Storage, Shows and Expos | August 8, 2017 - 12:02 PM | Allyn Malventano
Tagged: U.2, pcie, NVMe, micron, HHHL, FMS 2017, 9200, 3d nand
We were extremely impressed with the Micron 9100 Enterprise SSDs. They are still the fastest NAND flash SSDs we've tested to date, but they were built on planar NAND, and we know everyone is replacing their flat flash with more cost efficient 3D NAND. Same goes for the 9200:
Highlights for the new models are IMFT 3D NAND running in TLC mode and a new controller capable of PCIe 3.0 x8 (HHHL form factor only - U.2 is only a x4 interface). Here are the detailed specs:
Improvements for the x4 models are marginal upgrades over the 9100, but the x8 variants bump up the maximum performance to 900,000 IOPS and 5.5GB/s! These should be shipping by the end of the month, and we will review them as they come in.
Subject: Storage | August 2, 2017 - 06:21 PM | Allyn Malventano
Tagged: western digital, wdc, WD, tlc, slc, QLC, nand, mlc, flash, 96GB, 768Gb, 3d
A month ago, WD and Toshiba each put out releases related to their BiCS 3D Flash memory. WD announced 96 layers (BiCS4) as their next capacity node, while Toshiba announced them reliably storing four bits per cell (QLC).
WD recently did their own press release related to QLC, partially mirroring Toshiba's announcement, but this one had some additional details on capacity per die, as well as stating their associated technology name used for these shifts. TLC was referred to as "X3", and "X4" is the name for their QLC tech as applied to BiCS. The WD release stated that X4 tech, applied to BiCS3, yields 768Gbit (96GB) per die vs. 512Gbit (64GB) per die for X3 (TLC). Bear in mind that while the release (and the math) states this is a 50% increase, moving from TLC to QLC with the same number of cells does only yields a 33% increase, meaning X4 BiCS3 dies need to have additional cells (and footprint) to add that extra 17%.
The release ends by hinting at X4 being applied to BiCS4 in the future, which is definitely exciting. Merging the two recently announced technologies would yield a theoretical 96-layer BiCS4 die, using X4 QLC technology, yielding 1152 Gbit (144GB) per die. A 16 die stack of which would come to 2,304 GB (1.5x the previously stated 1.5TB figure). The 2304 figure might appear incorrect but consider that we are multiplying two 'odd' capacities together (768 Gbit (1.5x512Gbit for TLC) and 96 layers (1.5x64 for X3).
Press blast appears after the break.
Subject: Storage | July 24, 2017 - 05:01 PM | Jeremy Hellstrom
Tagged: toshiba, ssd, ocz, NVMe, nand, M.2, XG5, BiCS, 64-Layer
We first saw Toshiba's XG5 M.2 SSD at Computex this year but as of yet we have not had a chance to review it. The Tech Report on the other hand did get their mitts on the 512GB model of this drive and they put it through its paces in this review right here. Their results show a drive that beats OCZs' RD400 across the board and is impinging on Samsung's 960 Pro and EVO, though they are not quite there yet. The next generation will improve on performance which should spur Samsung to new heights with their next NVMe product. At the start of the article is some history on the current state of Toshiba which is worth checking out if you are not familiar with what is going on there.
"Toshiba's XG5 NVMe SSD is shipping to the company's OEM partners now. We run it through our test suite to see if the company's newfangled 64-layer BiCS NAND helps it compete with the best in the business."
Here are some more Storage reviews from around the web:
Subject: Storage | July 18, 2017 - 07:31 PM | Jeremy Hellstrom
Tagged: XPoint, srt, rst, Optane Memory, Optane, Intel, hybrid, CrossPoint, cache, 32GB, 16GB
It has been a few months since Al looked at Intel's Optane and its impressive performance and price. This is why it seems appropriate to revist the 2280 M.2 stick with a PCIe 3.0 x2 interface. It is not just the performance which is interesting but the technology behind Optane and the limitations. For anyone looking to utilize Optane is is worth reminding you of the compatibility limitations Intel requires, only Kaby Lake processors with Core i7, i5 or i3 heritage. If you do qualify already or are planning a system build, you can revisit the performance numbers over at Kitguru.
"Optane is Intel’s brand name for their 3D XPoint memory technology. The first Optane product to break cover was the Optane PC P4800X, a very high-performance SSD aimed at the Enterprise segment. Now we have the second product using the technology, this time aimed at the consumer market segment – the Intel Optane Memory module."
Here are some more Memory articles from around the web:
- G.SKILL TridentZ RGB 3600 MHz C16 DDR4 @ techPowerUp
- GSKill Trident Z 4133Mhz RGB CL19 DDR4 Dual Channel Memory Review @ Hardware Asylum
- Ballistix Elite 3466 MHz DDR4 @ techPowerUp