Subject: Storage | June 28, 2017 - 02:12 PM | Jeremy Hellstrom
Tagged: Toshiba XG5, toshiba, ssd, NVMe, nand, M.2, BiCS, 64-Layer
We first heard about the Toshiba XG5 1TB NVMe SSD at Computex, with its 64 layer BiCS flash and stated read speeds of 3GB/s, writes just over 2 GB/s. Today Kitguru published a review of the new drive, including ATTO results which match and even exceed the advertised read and write speeds. Their real world test involved copying 30GB of movies off of a 512GB Samsung 950 Pro to the XG5, only Samsung's new 960 lineup and the OCZ RD400 were able to beat Toshiba's new SSD. Read more in their full review, right here.
"The Toshiba XG5 1TB NVMe SSD contains Toshiba's newest 3D 64-Layer BiCS memory and our report will examine Toshiba's newest memory, as well as their newest NVMe controller to go along with it."
Here are some more Storage reviews from around the web:
- Toshiba N300 8TB HDD @ Kitguru
- Kingston Gold Series UHS-1 Speed Class 3 64GB MicroSDXC @ Modders-Inc
- Kingston DataTraveler Ultimate GT 2TB USB 3.1 Gen 1 Flash Drive Review @ NikKTech
- Drobo 5D3 DAS Review (Thunderbolt 3) @ Kitguru
- LaCie 2TB Rugged Thunderbolt USB-C Professional All-Terrain Mobile Storage Review @ NikKTech
Introduction, Specifications and Packaging
Today Intel is launching a new line of client SSDs - the SSD 545S Series. These are simple, 2.5" SATA parts that aim to offer good performance at an economical price point. Low-cost SSDs is not typically Intel's strong suit, mainly because they are extremely rigorous on their design and testing, but the ramping up of IMFT 3D NAND, now entering its second generation stacked to 64-layers, should finally help them get the cost/GB down to levels previously enjoyed by other manufacturers.
Intel and Micron jointly announced 3D NAND just over two years ago, and a year ago we talked about the next IMFT capacity bump coming as a 'double' move. Well, that's only partially happening today. The 545S line will carry the new IMFT 64-layer flash, but the capacity per die remains the same 256Gbit (32GB) as the previous generation parts. The dies will be smaller, meaning more can fit on a wafer, which drives down production costs, but the larger 512Gbit dies won't be coming until later on (and in a different product line - Intel told us they do not intend to mix die types within the same lines as we've seen Samsung do in the past).
There are no surprises here, though I am happy to see a 'sustained sequential performance' specification stated by an SSD maker, and I'm happier to see Intel claiming such a high figure for sustained writes (implying this is the TLC writing speed as the SLC cache would be exhausted in sustained writes).
I'm also happy to see sensical endurance specs for once. We've previously seen oddly non-scaling figures in prior SSD releases from multiple companies. Clearly stating a specific TBW 'per 128GB' makes a lot of sense here, and the number itself isn't that bad, either.
Simplified packaging from Intel here, apparently to help further reduce shipping costs.
Subject: General Tech, Shows and Expos | June 12, 2017 - 12:19 PM | Jeremy Hellstrom
Tagged: ssd, sata, NVMe, M.2, computex 2017, adta
Adata had a flashy booth at Computex, focusing on their upcoming storage and memory products which The Tech Report spent some time at. They had quite a lineup to show off, a pair of Enterprise class NVMe M.2 drives, the IM2P33E8 powered by Silicon Motion's upcoming SM2262 controller which is reputed to hit 3000 MB/s read, 1500 MB/s write as well as the SATA IM2S33D8 using the SM2259 controller.
For high end users there are the NVMe XPG SX9000, XPG SX8000 and XPG SX7000, the former with a Marvell controller and Toshiba's evergreen 15-nm MLC NAND, the latter pair with a Silicon Motion controller and IMFT 3D MLC flash. For the price sensitive they have launched an M.2 drive which only uses two PCIe lanes, it will not be as the high end drives but should leave a HDD or older SSD in the dirt.
As for what is below? Why that is an XPG Spectrix S10 drive which is the world's first RGB infected SSD.
"Without high-end motherboards or funky case concepts to show off, Adata focused its Computex presence on its strong point: storage. Join us as we walk through the company's upcoming SSD offerings."
Here is some more Tech News from around the web:
- The AMD Vega Memory Architecture Q&A With Jeffrey Cheng @ TechARP
- Researchers find super flaw in Virgin Media Super Hub routers @ The Inquirer
- Alphabet offloads bot businesses Boston Dynamics and SCHAFT @ The Register
- Microsoft officially hangs up on old Skype phones, users fuming @ The Register
- Windows 10 Creators Update preview: Lovin' for Edge and pen users, nowt much else @ The Register
Subject: Storage | May 30, 2017 - 09:00 AM | Allyn Malventano
Tagged: toshiba, ssd, ocz, NVMe, nand, M.2, computex 2017, BiCS, 64-Layer
Last night we saw WD launch the first client SSDs with 64-layer NAND Flash, but recall that WD/SanDisk is in partnership with Toshiba to produce this new gen 3 BiCS memory, which means Toshiba is also launching their own product wrapped around this new high-density flash:
Enter the Toshiba XG5. It is certainly coming on strong here, as evidenced by the specs:
Unlike the WD/SanDisk launch, the BiCS flash on this Toshiba variant sits behind an NVMe SSD controller, with stated read speeds at 3GB/s and writes just over 2 GB/s. We don't yet have random performance figures, but we expect it to certainly be no slouch given the expected performance of this newest generation of flash memory. Let's take a quick look at some of the high points there:
Alright, so we have the typical things you'd expect, like better power efficiency and higher endurance, but there is a significant entry there under the performance category - 1-shot, full sequence programming. This is a big deal, since writing to flash memory is typically done in stages, with successive program cycles nudging cell voltages closer to their targets with each pass. This takes time and is one of the main things holding back the write speeds of NAND flash. This new BiCS is claimed to be able to successfully write in a single program cycle, which should translate to noticeable improvements in write latency.
Another thing helping with writes is that the XG5 will have its BiCS flash operating in a hybrid mode, meaning these are TLC SSDs with an SLC cache. We do not have confirmed cache sizes to report, but it's a safe bet that they will be similar to competing products.
We don't yet have pricing info, but we do know that the initial capacity offerings will start with 256GB, 512GB, and 1TB offerings. The XG5 is launching in the OEM channel in the second half of 2017. While this one is an OEM product, remember that OCZ is Toshiba's brand for client SSDs, so there's a possibility we may see a retail variant appear under that name in the future.
Subject: Storage | May 29, 2017 - 11:42 PM | Allyn Malventano
Tagged: western digital, wdc, WD, Ultra, ssd, sandisk, nand, computex 2017, Blue, BiCS, 3d
Western Digital bought SanDisk nearly two years ago, but we had not really seen any products jointly launched under both brand labels. Until today:
The WD Blue 3D NAND SATA SSD and SanDisk Ultra 3D SSD are both products containing identical internals. Specifically, these are the first client SSDs built with 64-layer 3D NAND technology. Some specs:
- Sequential read: 560 MB/s
- Sequential write: 530 MB/s
- Capacity: 250GB, 500GB, 1TB, 2TB
- Form factor: 2.5" (WD and Sandisk), M.2 (SATA) 2280 (WD only)
MSRP's start at $99.99 for the 250GB models of all flavors (2.5" / M.2 SATA), and all products will ship with a 3-year warranty.
It might seem odd that we see an identical product shipped under two different brands owned by the same company, but WD is likely leveraging the large OEM relationship held by SanDisk. I'm actually curious to see how this pans out long term because it is a bit confusing at present.
Intro and Upgrading the PS4 Pro Hard Drive
When Sony launched the PS4 Pro late last year, it introduced an unusual mid-cycle performance update to its latest console platform. But in addition to increased processing and graphics performance, Sony also addressed one of the original PS4's shortcomings: the storage bus.
The original, non-Pro PlayStation 4 utilized a SATA II bus, capping speeds at 3Gb/s. This was more than adequate for keeping up with the console's stock hard drive, but those who elected to take advantage of Sony's user-upgradeable storage policy and install an SSD faced the prospect of a storage bus bottleneck. As we saw in our original look at upgrading the PS4 Pro with a solid state drive, the SSD brought some performance improvements in terms of load times, but these improvements weren't always as impressive as we might expect.
We therefore set out to see what performance improvements, if any, could be gained by the inclusion of SATA III in the PS4 Pro, and if this new Pro model makes a stronger case for users to shell out even more cash for a high capacity solid state drive. We weren't the only ones interested in this test. Digital Foundry conducted their own tests of the PS4 Pro's SATA III interface. They found that while a solid state drive in the PS4 Pro clearly outperformed the stock hard drive in the original PS4, it generally didn't offer much improvement over the SATA II-bottlenecked SSD in the original PS4, or even, in some cases, the stock HDD in the PS4 Pro.
But we noticed a major issue with Digital Foundry's testing process. For their SSD tests, they used the OCZ Trion 100, an older SSD with relatively mediocre performance compared to its latest competitors. The Trion 100 also has a relatively low write endurance and we therefore don't know the condition and performance characteristics of Digital Foundry's drive.
To address these issues, we conducted our tests with a brand new 1TB Samsung 850 EVO. While far from the cheapest, or even most reasonable option for a PS4 Pro upgrade, our aim is to assess the "best case scenario" when it comes to SSD performance via the PS4 Pro's SATA III bus.
Subject: Editorial | April 27, 2017 - 12:19 PM | Alex Lustenberg
Tagged: podcast, Win 3.11, ssd, riotoro, Optane Memory, Optane, Intel, GTX 1080Ti, fsp, evga, EK Supremacy, corsair, biostar, asus, video
PC Perspective Podcast #447 - 04/27/17
Join us for loads of Intel Optane, multiple water cooling parts, a Mini-ITX AM4 board, and more!
The URL for the podcast is: http://pcper.com/podcast - Share with your friends!
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Hosts: Jeremy Hellstrom, Allyn Malventano, Ken Addison, Morry Teitelman
Peanut Gallery: Alex Lustenberg
Program length: 1:50:22
Week in Review:
News items of interest:
Hardware/Software Picks of the Week
Introduction and Specifications
XPoint. Optane. QuantX. We've been hearing these terms thrown around for two years now. A form of 3D stackable non-volatile memory that promised 10x the density of DRAM and 1000x the speed and endurance of NAND. These were bold statements, and over the following months, we would see them misunderstood and misconstrued by many in the industry. These misconceptions were further amplified by some poor demo choices on the part of Intel (fortunately countered by some better choices made by Micron). Fortunately cooler heads prevailed as Jim Handy and other industry analysts helped explain that a 1000x improvement at the die level does not translate to the same improvement at the device level, especially when the first round of devices must comply with what will soon become a legacy method of connecting a persistent storage device to a PC.
Did I just suggest that PCIe 3.0 and the NVMe protocol - developed just for high-speed storage, is already legacy tech? Well, sorta.
That 'Future NVM' bar at the bottom of that chart there was a 2-year old prototype iteration of what is now Optane. Note that while NVMe was able to shrink down the yellow bar a bit, as you introduce faster and faster storage, the rest of the equation (meaning software, including the OS kernel) starts to have a larger and larger impact on limiting the ultimate speed of the device.
NAND Flash simplified schematic (via Wikipedia)
Before getting into the first retail product to push all of these links in the storage chain to the limit, let's explain how XPoint works and what makes it faster. Taking random writes as an example, NAND Flash (above) must program cells in pages and erase cells in blocks. As modern flash has increased in capacity, the sizes of those pages and blocks have scaled up roughly proportionally. At present day we are at pages >4KB and block sizes in the megabytes. When it comes to randomly writing to an already full section of flash, simply changing the contents of one byte on one page requires the clearing and rewriting of the entire block. The difference between what you wanted to write and what the flash had to rewrite to accomplish that operation is called the write amplification factor. It's something that must be dealt with when it comes to flash memory management, but for XPoint it is a completely different story:
XPoint is bit addressible. The 'cross' structure means you can select very small groups of data via Wordlines, with the ultimate selection resolving down to a single bit.
Since the programmed element effectively acts as a resistor, its output is read directly and quickly. Even better - none of that write amplification nonsense mentioned above applies here at all. There are no pages or blocks. If you want to write a byte, go ahead. Even better is that the bits can be changed regardless of their former state, meaning no erase or clear cycle must take place before writing - you just overwrite directly over what was previously stored. Is that 1000x faster / 1000x more write endurance than NAND thing starting to make more sense now?
Ok, with all of the background out of the way, let's get into the meat of the story. I present the P4800X:
Subject: Storage | April 7, 2017 - 07:01 AM | Scott Michaud
Tagged: WD, ssd, external ssd
Western Digital has just announced the My Passport SSD line of portable solid state hard drives. As you might expect, the major advantage of SSD-based portable storage is speed. This one connects with a USB Type-C port and is rated at up to 515 MB/s, although that hasn’t been benchmarked yet. The drives also support hardware, 256-bit AES encryption via their security software.
According to Best Buy, the 256GB model ($99.99 USD) is already sold out, but the 512GB model ($199.99) and the 1TB model ($399.99) are both still available for the 14th of April.
Subject: Storage | February 15, 2017 - 08:58 PM | Allyn Malventano
Tagged: XPoint, ssd, Optane, memory, Intel, cache
We now have an actual Optane landing page on the Intel site that discusses the first iteration of 'Intel Optane Memory', which appears to be the 8000p Series that we covered last October and saw as an option on some upcoming Lenovo laptops. The site does not cover the upcoming enterprise parts like the 375GB P4800X, but instead, focuses on the far smaller 16GB and 32GB 'System Accelerator' M.2 modules.
Despite using only two lanes of PCIe 3.0, these modules turn in some impressive performance, but the capacities when using only one or two (16GB each) XPoint dies preclude an OS install. Instead, these will be used, presumably in combination with a newer form of Intel's Rapid Storage Technology driver, as a caching layer meant as an HDD accelerator:
While the random write performance and endurance of these parts blow any NAND-based SSD out of the water, the 2-lane bottleneck holds them back compared to high-end NVMe NAND SSDs, so we will likely see this first consumer iteration of Intel Optane Memory in OEM systems equipped with hard disks as their primary storage. A very quick 32GB caching layer should help speed things up considerably for the majority of typical buyers of these types of mobile and desktop systems, while still keeping the total cost below that for a decent capacity NAND SSD as primary storage. Hey, if you can't get every vendor to switch to pure SSD, at least you can speed up that spinning rust a bit, right?