Subject: General Tech | November 5, 2014 - 02:29 PM | Jeremy Hellstrom
Tagged: ssd, Optimization Guide
Tech ARP have updated their handy SSD Optimization Guide which covers a variety of ways to ensure that your SSD has a long life and offers you the best possible performance while it works for you. Many of the tips such as enabling AHCI mode in your BIOS before installing an OS are obvious to even an SSD newbie but not everyone will be familiar with their GUID Partition Table or proper partition alignment. The guide is a handy reference for users old and new to make sure that your brand new SSD is performing up to specification.
"Modern SSDs use a mix of techniques and technologies like overprovisioning of memory cells, wear levelling, a write combine buffer (or on-the-fly data compression), and the Trim command or automatic garbage collection to maintain performance and extend the lifespan of the flash memory cells. However, there's only so much they can do."
Here are some more Storage reviews from around the web:
- Seagate 1200 SSD 400GB SAS 12Gb/s Review @ NikKTech
- Corsair Voyager Air 2 Mobile Wireless Storage 1 TB Review @ Madshrimps
- QNAP HS-251 Fanless NAS @ techPowerUp
- Silicon Power Armor A60 USB 3.0 Hard Drive Review @HiTech Legion
- Silicon Power Armor A30 USB 3.0 Hard Drive Review @HiTech Legion
- Mach Xtreme MX-ES 32GB USB 3.0 Flash Drive Review @ NikKTech
- Kingston HyperX Fury 16GB USB 3.0 @ Kitguru
Given that we are anticipating a launch of the Samsung 850 EVO very shortly, it is a good time to back fill on the complete performance picture of the 850 Pro series. We have done several full capacity roundups of various SSD models over the past months, and the common theme with all of them is that as the die count is reduced in lower capacity models, so is the parallelism that can be achieved. This effect varies based on what type of flash memory die is used, but the end result is mostly an apparent reduction in write performance. Fueling this issue is the increase in flash memory die capacity over time.
There are two different ways to counteract the effects of write speed reductions caused by larger capacity / fewer dies:
- Reduce die capacity.
- Increase write performance per die.
Recently there has been a trend towards *lower* capacity dies. Micron makes their 16nm flash in both 128Gbit and 64Gbit. Shifting back towards the 64Gbit dies in lower capacity SSD models helps them keep the die count up, increasing overall parallelism, and therefore keeping write speeds and random IO performance relatively high.
In conjunction with Dell World, LiteOn has announced their new EP1 M.2 PCIe SSD:
Designed primarily for enterprise workloads and usage, the EP1 sports impressive specs for such a small device. Capacities are 480 and 960GB, random 4k IO is rated at 150k/44k (R/W), sequentials are as high as 1.5GB/sec, and max latencies are in the 30-40 us range (this spec is particularly important for enterprise OLTP / transactional database workloads). Given the enterprise specs, power loss protection is a given (and you can see the capacitors in the upper right of the above photo). Here are the full specs:
It should be noted that larger PCIe-based SSDs are rated for greater than the 1 drive write per day of the EP1, but they are also considerably larger (physically) when compared to the M.2 EP1. As an additional aside, the 960GB capacity is a bit longer than you might have seen so far in the M.2 form factor. While the 480GB model is a familiar 2280 (80mm long), the 960GB model follows the 22110 form factor (110mm long). The idle power consumption seems a bit high, but enterprise devices are typically tuned for instantaneous response over idle wattage.
Subject: Storage | October 28, 2014 - 01:30 PM | Allyn Malventano
Tagged: ssd, sata, Samsung, 850 EVO
Thanks to an updated SKU list and some searching, we've come across some initial photos, specs, and pricing for the upcoming Samsung 850 EVO.
You may have heard of an 850 EVO 1TB listing over at Frys, but there's actually more information out there. Here's a quick digest:
- Memory: 3D VNAND
- Read: 550MB/sec
- Write: 520MB/sec
- Weight: 0.29 lbs
Pricing (via Antares Pro listings at time of writing):
- 120GB (MZ-75E120B/AM): $100 ($0.83 / GB)
- 250GB (MZ-75E250B/AM): $146 ($0.58 / GB)
- 500GB (MZ-75E500B/AM): $258 ($0.52 / GB)
- 1TB (MZ-75E1T0B/AM): $477 ($0.48 / GB)
In addition to the above, we saw the 1TB model listed for $500 at Frys, and also found the 500GB for $264 at ProVantage. The shipping date on the Frys listing was initially November 3rd, but that has since shifted to November 24th, presumably due to an influx of orders.
We'll be publishing a full capacity roundup on the 850 Pro in anticipation of the 850 EVO launch, which based on these leaks is imminent.
Subject: Storage | October 27, 2014 - 04:00 PM | Jeremy Hellstrom
Tagged: M.2, ssd, transcend, MTS800
M.2 is quickly gaining popularity thanks to its small size and power requirements as well as the possible speed increase and other features. Transcend's 128GB MTS800 drive features fill AES encryption, wear levelling and garbage collection as well as something new, StaticDataRefresh Technology. That is their name for a process which automatically restores the charge levels in the NAND cells which both prevents errors from accumulating as well as performance reduction over time. M.2 drives do come with a price premium, the 128GB model is available for $76 on Amazon but the performance is impressive, the lowest transfer speed The SSD Review saw during their testing was 265.61MB/s.
"We have been seeing more M.2 SSDs lately, a lot of which are companies’ first steps into the market since the form factor is so new. They have been designed to meet strict size requirements and allow for greater flexibility in product development. They are the perfect fit for mobile devices with their compact size and light weight."
Here are some more Storage reviews from around the web:
- KINGMAX M.2 2242 SATA SSD Review (128GB) @ The SSD Review
- SanDisk Ultra 2 SSD @ HardwareHeaven
- SanDisk Extreme Pro 480GB SSD @ eTeknix
- Crucial MX100 512GB & Samsung 850 Pro 256GB SSDs @ Silent PC Review
- oshiba 2.5-inch 1TB Solid State Hybrid Drive @ eTeknix
- Western Digital My Passport Pro 2 TB Portable (Thunderbolt) HDD @ TechARP
- Thecus N2560 Dual-bay SOHO NAS Review @ Techgage
- Silicon Power Armor A30 2TB USB 3.0 Portable Hard Drive Review @ NikKTech
- Silicon Power Mobile OTG X20 USB 2.0 Flash Drive Review @ Madshrimps
- Kingston HyperX Fury 64GB USB 3.0 Flash Drive Review @ NikKTech
Subject: Storage | October 6, 2014 - 02:51 PM | Jeremy Hellstrom
Tagged: ssd, slc, mlc, micron, M600, Dynamic Write Acceleration
The Tech Report took a different look at Micron's M600 SSD than Al did in his review. Their benchmarks were focused more on a performance comparison versus the rest of the market, with over two dozen SSDs listed in their charts. As you would expect the 1TB model outperformed the 256GB model but it was interesting to note that the 256GB MX100 outperformed the newer M600 in many tests. In the final tally the new caching technology helped the 256GB model perform quite well but it was the 1TB model, which supposedly lacks that technology proved to be one of the fastest they have tested.
"Micron's new M600 SSD has a dynamic write cache that can treat any block on the drive as high-speed SLC NAND. This unique feature is designed to help lower-capacity SSDs keep up with larger drives that have more NAND-level parallelism, and we've tested the 256GB and 1TB versions to see how well it works."
Here are some more Storage reviews from around the web:
- MyDigitalSSD BP4e mSATA SSD @ The SSD Review
- Top 10 SSDs: Price, performance and capacity @ The Register
- Micron M600 M.2 SATA SSD @ The SSD Review
- Some thoughts on the performance of SSD RAID 0 arrays @ Hardware Secrets
- Transcend SSD370 128GB SSD Review @ Legit Reviews
- Micron M600 SSD @ The SSD Review
- QNAP TS-653 Pro @ Legion Hardware
- QNAP SilentNAS HS-251 NAS Server Review @ NikKTech
- Mach Xtreme MX-ES Ultra SLC USB 3.0 Flash Drive @ The SSD Review
- Silicon Power Marvel M70 64GB USB 3.0 Flash Drive Review @ NikKTech
Subject: General Tech | October 2, 2014 - 02:05 PM | Ken Addison
Tagged: X99 Classified, X99, video, tlc, tegra k1, ssd, Samsung, podcast, nvidia, micron, M600, iphone 6, g-sync, freesync, evga, broadwell-u, Broadwell, arm, apple, amd, adaptive sync, a8, 840 evo, 840
PC Perspective Podcast #320 - 10/02/2014
Join us this week as we discuss the Micron M600 SSD, NVIDIA and Adaptive Sync, Windows 10 and more!
The URL for the podcast is: http://pcper.com/podcast - Share with your friends!
- iTunes - Subscribe to the podcast directly through the Store
- RSS - Subscribe through your regular RSS reader
- MP3 - Direct download link to the MP3 file
Hosts: Ryan Shrout, Jeremy Hellstrom, Josh Walrath, and Allyn Malventano
Program length: 1:27:21
Introduction and Specifications
Today Micron lifted the review embargo on their new M600 SSD lineup. We covered their press launch a couple of weeks ago, but as a recap, the headline new feature is the new Dynamic Write Acceleration feature. As this is a new (and untested) feature that completely changes the way an SSD must be tested, we will be diving deep on this one later in this article. For the moment, let's dispose with the formalities.
Here are the samples we received for testing:
It's worth noting that since all M600 models use 16nm 128Gbit dies, packaging is expected to have a negligible impact on performance. This means the 256GB MSATA sample should perform equally to its 2.5" SATA counterpart. The same goes for comparisons against M.2 form factor units. More detail is present in the specs below:
Highlights from the above specs are the increased write speeds (no doubt thanks to Dynamic Write Acceleration) and improved endurance figures. For reference, the prior gen Micron models were rated at 72TB (mostly regardless of capacity), so seeing figures upwards of 400TB indicates Micron's confidence in their 16nm process.
Sorry to disappoint here, but the M600 is an OEM targeted drive, meaning its 'packaging' will likely be the computer it comes installed in. If you manage to find it through a reseller, it will likely come in OEM-style brown/white box packaging.
We have been evaluating these samples for just under a week and have logged *many* hours on them, so let's get to it!
Subject: General Tech, Storage | September 21, 2014 - 08:41 PM | Scott Michaud
Tagged: ssd, Samsung, kingston hyper x, kingston, endurance, corsair neutron gtx, corsair, 840 pro
Many drives have died over the last year and a bit. The Tech Report has been torturing SSDs with writes until they drop. Before a full petabyte of data was written, three of the six drives kicked the bucket. They are now at 1500TB of total writes and one of the three survivors, the 240GB Corsair Neutron GTX, dropped out. This was a bit surprising as it was reporting fairly high health when it entered "the petabyte club" aside from a dip in read speeds.
The two remaining drives are the Samsung 840 Pro (256GB) and Kingston HyperX 3K (240GB).
Two stand, one fell (Image Credit: Tech Report)
Between those two, the Samsung 840 Pro is given the nod as the Kingston drive lived through uncorrectable errors; meanwhile, the Samsung has yet to report any true errors (only reallocations). Since the test considers a failure to be a whole drive failure, though, the lashings will persist until the final drive gives out (or until Scott Wasson gives up in a glorious sledgehammer apocalypse -- could you imagine if one of them lasted a decade? :3).
Of course, with just one unit from each model, it is difficult to faithfully compare brands with this marathon. While each lasted a ridiculously long time, the worst of the bunch putting up with a whole 2800 full-drive writes, it would not be fair to determine an average lifespan for a given model with one data point each. It is good to suggest that your SSD probably did not die from a defrag run -- but it is still a complete waste of your time and you should never do it.
Introduction, Specifications and Packaging
It seems a lot of folks have been incorporating Silicon Motion's SM2246EN controller into their product lines. We first reviewed the Angelbird SSD wrk, but only in a 512GB capacity. We then reviewed a pair of Corsair Force LX's (256GB and 512GB). ADATA has joined the club with their new Premier SP610 product line, and today we are going to take a look at all available capacities of this new model:
It's fortunate that ADATA was able to sample us a full capacity spread, as this will let us evaluate all shipping SSD capacites that exist for the Silicon Motion SM2246EN controller.