Samsung 840 EVO mSATA Gets Long Awaited EXT43B6Q Firmware, Fixes Read Speed Issue

Subject: Storage | October 1, 2015 - 05:42 PM |
Tagged: Samsung, firmware, 840 evo, msata

It took them a while to get it right, but Samsung did manage to fix their read degradation issue in many of their TLC equipped 840 Series SSDs. I say many because there were some models left out when firmware EXT0DB6Q was rolled out via Magician 4.6. The big exception was the mSATA variant of the 840 EVO, which was essentially the same SSD just in a more compact form. This omission was rather confusing as the previous update was applicable to both the 2.5" and mSATA form factors simultaneously.

840 EVO mSATA - 06.png

The Magician 4.7 release notes included a bullet for Advanced Performance Optimization support on the 840 EVO mSATA model, but it took Samsung some time to push out the firmware update that enabled this possibility. We know from our previous testing that the Advanced Performance Optimization feature was included with other changes that enabled reads from 'stale' data at full speeds, compensating for the natural voltage drift of flash cell voltages representing the stored data.

840 EVO mSATA FW - 6.png

Now that the firmware has been made available (it came out early this week but was initially throttled), I was able to apply it to our 840 EVO 1TB mSATA sample without issue, and could perform the Advanced Performance Optimization and observe the expected effects, but my sample was recently used for some testing and did not have data old enough to show a solid improvement with the firmware applied *and before* running the Optimization. Luckily, an forum member was able to perform just that test on his 840 EVO 500GB mSATA model:

Palorim12 post.png

Kudos to that member for being keen enough to re-run his test just after the update.


It looks like the only consumer 840 TLC model left to fix is the original 840 SSD (not 840 EVO, just 840). This was the initial model launched that was pure TLC flash with no SLC TurboWrite cache capability. We hope to see this model patched in the near future. There were also some enterprise units that used the same planar 19nm TLC flash, but I fear Samsung may not be updating those as most workloads seen by those drives would constantly refresh the flash and not give it a chance to become stale and suffer from slowing read speeds. The newer and faster V-NAND equipped models (850 / 950 Series) have never been susceptible to this issue.

Source: Samsung

$700 for 2TB of SSD goodness

Subject: Storage | September 29, 2015 - 07:07 PM |
Tagged: tlc, ssd, Samsung 850 EVO 2 TB, 850 EVO, 2TB

That's right, currently $713 will pick you up a 2TB Samsung 850 EVO SSD but how does it perform?  The Tech Report is on the case with their latest review, checking out how 32-layer 128Gbit 3D V-NAND with 2GB of DRAM cache and an upgraded Samsung MHX controller perform.  It took some doing but once they had filled its over-provisioned area the drive levelled out at 7252 IOps on the random write test though the peak of 84423 was certainly impressive.  Check out the full review to see if this is the large sized SSD for you or if you prefer smaller, more agile SSDs which do not use TLC NAND. 

If you are like me and running out of mental storage space, you may have already forgotten about Al's review of this drive.


"Samsung now offers its popular and affordable 850 EVO SSD in an enormous 2TB configuration. We put the EVO to the test to see how this behemoth performs"

Here are some more Storage reviews from around the web:


Thirtysomething cents per gigabyte; Kingston's HyperX Fury versus the SanDisk Ultra II

Subject: Storage | September 23, 2015 - 02:28 PM |
Tagged: kingston, HyperX Fury, Ultra II, sandisk, SandForce SF-2281, Marvell 88SS9189

The Kingston HyperX Fury 240GB SSD is currently $90 and the same size SanDisk Ultra II is $86 though the 960GB model that The Tech Report actually reviewed is a relatively decent $300.  At those prices they can be quite attractive although there is a big difference between the two drives, Kingston's uses SandForce's SF-2281 while SanDisk opted for the Marvell 88SS9189 controller.  Once the benchmarks started the difference did not show in real world applications, both are good performers overall though the HyperX did show some delays in the IOMeter testing.  The OCZ Arc 100 that they included did end up on top overall, a strong showing for a drive that is getting a little long in the tooth.


"Kingston's HyperX Fury 240GB SSD and Sandisk's Ultra II 960GB drive both offer solid-state storage at budget-friendly prices for their capacity. We put them through their paces to see whether they're worthy of builders' hard-earned cash."

Here are some more Storage reviews from around the web:



Subject: Storage
Manufacturer: Intel

Introduction, Specifications and Packaging


What's better than an 18-channel NVMe PCIe Datacenter SSD controller in a Half Height Half Length (HHHL) package? *TWO* 18-channel NVMe PCIe Datacenter controllers in a HHHL package! I'm sure words to this effect were uttered in an Intel meeting room some time in the past, because such a device now exists, and is called the SSD DC P3608:


The P3608 is essentially a pair of P3600's glued together on a single PCB, much like how some graphics cards merge a pair of GPUs to act with the performance of a pair of cards combined into a single one:


What is immediately impressive here is that Intel has done this same trick within 1/4 of the space (HHHL compared to a typical graphics card). We can only imagine the potential of a pair of P3600 SSDs, so lets get right into the specs, disassembly, and testing!

Read on for the full review!

Samsung Announces New Branding and Future SSD Capacity Expansion with their New 48-Layer V-NAND

Subject: Storage | September 22, 2015 - 06:10 PM |
Tagged: vnand, V-NAND, Samsumg, 4TB, 48-layer, 2TB, 1TB

During yesterday's SSD Summit, obscured by their 950 PRO launch was new branding for their 32 (and now 48) layer Vertical NAND technology:

V-NAND branding.JPG

This new branding is more in line with what folks were calling their NAND anyway (Samsung was previously using the term '3D VNAND'. Dropping the 3D made sense, as it was implied with the 'V').

Also of interest were some announcements of upcoming higher capacities of their existing models:


4TB 850 EVO and PRO? Yes please.


1TB in the 850 EVO M.2 edition, and while there is no slide for this, the 950 PRO is also expected to be updated with a 1TB model within the same time frame as well.

How is all of this expansion possible? The answer is their third generation V-NAND, which is 48 layers and 256 GBit (32 GB) capacity per die. Samsung intends to roll this flash out and update all model lines currently using V-NAND technology. This decision was made by Samsung's Senior VP of Marketing, UnSoo Kim:

DSC06006.jpg before you get out the pitchforks and form up the 'don't change the flash without a new model' lynch mob, I'd like to point out a few things that make this change different than what you might have seen in the past.

  • Samsung is trying to prevent confusion by adding product lines with nearly identical specs.
  • Samsung is being very open about this change (others were secretive / deceptive).
  • Samsung has promised that they will only implement this change in a way that *increases* the performance and *decreases* the power consumption of these products.

I did leave the Q+A with some further questions about this change. The lower capacities of the 850 EVO still see slower write performance when writing straight to TLC flash (SLC cache is full). This is because there are fewer dies available to write the data, and each die can only write so fast in TLC mode. Since the 48-layer V-NAND is to have double the capacity per die, that would mean half the dies per SSD and possibly slower write speeds in the overall product.

I approached UnSoo Kim after the Q+A and asked this specific question, and his answer was both interesting and refreshing. First, he understood my question immediately and assured me that they will not roll out 256Gbit 48-layer V-NAND into their smaller capacity models - in order to prevent any performance reduction over their current 32-layer equipped parts. Second, he told me that they also intend to produce a 128Gbit variant of 48-layer V-NAND at some point in the future, and use *that* part to substitute the 128Gbit 32-layer V-NAND in those smaller capacity models, keeping the die counts (and therefore sequential write speeds) equal. That additional variant of their third generation V-NAND is the only way (in my mind) that they could update their smaller capacity parts without losing performance, and it was great to see that Samsung has thought out the execution of this rollout in such a proper manner.

Samsung Launches 950 PRO - 300,000 IOPS and 2.5 GB/sec from a M.2 V-NAND SSD!

Subject: Storage | September 22, 2015 - 02:39 AM |
Tagged: vnand, V-NAND, ssd, Samsung, pcie, NVMe, M.2 2280, M.2, 950 PRO, 512GB, 256GB

I’ve been waiting a long time for Samsung to put their V-NAND flash memory into a PCIe connected SSD, and such a product has just been officially announced at the Samsung SSD Global Summit.


Samsung’s new product launching will be called the 950 PRO. This will be an M.2 2280 form factor product running at PCIe 3.0 x4. Equipped with Samsung’s 32-layer V-NAND and using the NVMe protocol enabled by a new UBX controller, the 950 PRO will be capable of up to an impressive 300,000 random read IOPS. Random writes come in at 110,000 IOPS and sequential throughputs are expected to be 2.5 GB/sec reads and 1.5 GB/sec for writes. Available capacities will be 256GB and 512GB.




The 950 PRO will be shipping with a 5-year warranty rated at 200 terabytes written for the 256GB model and 400 TBW for the 512GB. That works out to just over 100GB per day for both capacities.

These hit retail in October and we currently have samples in hand for testing.


(for those curious, both capacities only have components on the front side of the PCB)

Full press blast after the break.

Source: Samsung

Good Morning (Night) From Seoul! New Samsung SSDs Are Coming!

Subject: Storage | September 21, 2015 - 11:32 AM |
Tagged: vnand, Summit, ssd, Seoul, Samsung, M.2, Korea, Global, 2015

As I hinted during last week's podcast, I am in Seoul, Korea to cover an upcoming press conference.


To those keen readers who have followed my previous trips here, it can only mean one thing -


..and with a Samsung SSD Global Summit comes product announcements. Those don't happen until tomorrow (late tonight for you folks back in the states), but I did notice a clue on the cover of our itinerary folder:


See it? Here, let me help:



A VNAND powered M.2 (presumably NVMe) SSD is *exactly* the thing I have been waiting for Samsung to unleash into the wild ever since we reviewed their NVMe SM951. Given that Samsung's prior M.2 offerings gave the Intel SSD 750 a run for its money all while consuming half the power, and did so with Samsung's older 2D Planar NAND, you can bet a VNAND version will be something to behold. Let's hope this new model is released as a consumer product and doesn't end up as OEM-channel unobtanium like the NVMe SM951 was!

Keep an eye out for additional posts from our coverage of the 2015 Samsung SSD Global Summit!

USB 3.1; bye bye BOT, hello UASP

Subject: Storage | September 10, 2015 - 03:30 PM |
Tagged: usb 3.1, asus, BOT, UASP

[H]ard|OCP is taking a look at the new USB standard and how it functions on versions of Windows newer than Win7 which support the new transfer protocol.  Gone are Bulk Only Transfers, modern OSes support USB Attached SCSI which offers much better transfer speeds.  With a Rampage V Extreme USB 3.1 and a bundled PCIe 2.0 x2 USB 3.1 card (available with two USB 3.1 Type A or one of the new USB 3.1 Type C) they tested the difference in transfer speeds between BOT and UASP.  Check out their results here.


"Recent changes to the USB spec claim to provide a brighter future for those dependent on USB storage. We have all heard about just how great USB has become, or should have become. We test some of these advances to see if the new USB can deliver the goods when it comes to moving data."

Here are some more Storage reviews from around the web:



Source: [H]ard|OCP
Subject: Storage
Manufacturer: Western Digital

Introduction and Specifications


It has been a while since we took a look at some hard drives here at PC Perspective. While seemingly everyone is pushing hard into Solid State Storage, those spinning platters have gotten the computer industry by for several decades, and they won't be going away any time soon so long as magnetic domains can store bits for cheaper than electrons can. SSDs have been eating away at the market for OS and single drive mobile needs, but when it comes to bulk storage, nothing beats a great hard drive for the money. Since many users would rather avoid maintaining a large array of drives, getting the capacity of each 3.5" unit higher is still a need, especially for storage hungry consumers. Enterprise units have been pushing into 8TB territory lately, but the consumer sweet spot currently remains at 6TB. Western Digital entered this area in July of last year, pushing their popular Green and Red lines up to 6TB. While the capacity was great, those two lines are mean to be power saving, slower spinning drives. When platter speeds are low, the laws of physics (and of rotational latency) kick in and dictate that they could never perform as well as their 7200 RPM counterparts.


...and now they have filled that gap, with their Black and Red Pro models now made available in up to 6TB capacities. To clarify the product lines here, the Green and Black products are intended for usage as a single drive, while the Red and Red Pro are meant for operating in NAS devices and use in a RAID. The two drives in this review are the faster spinning models, so we should see better performance all around. Spinning those platters faster means more power drawn and more heat generated by air friction across the platters, as we can look into below:


Western Digital Red Pro 6TB:

  • Model: WD6001FFWX
  • Max Sequential Read: 214 MB/s
  • Form Factor: 3.5”
  • Interface Type: SATA 6.0 Gb/s (SATA 3)
  • UBER: <1 in 1015
  • Power (active/idle/standby): 10.6W/7.4W/1.6W
  • Warranty: 5 years

Western Digital Black 6TB:

  • Model: WD6001FZWX
  • Max Sequential: 218 MB/s
  • Form Factor: 3.5”
  • Interface Type: SATA 6.0 Gb/s (SATA 3)
  • UBER: <1 in 1014
  • Power (active/idle/standby): 10.6W/7.6W/1.6W
  • Warranty: 5 years

For comparison, the slower spinning 6TB Red and Green models run at 5.3W/3.4W/0.4W. Lesson learned - moving from ~5400 RPM to 7200 RPM roughly doubles the power draw of a high capacity 3.5" HDD. Other manufacturers are doing things like hermetically sealing their drives and filling them with Helium, but that is a prohibitively expensive proposition for consumer / small business drives, which is what the Black and Red Pro lines are meant to satisfy. It has also been proven that Helium filled drives are not the best if their track geometry is not optimized as well as it could be.

Western Digital Releases My Book Pro - up to 12TB of Thunderbolt Connected Storage

Subject: Storage | September 8, 2015 - 03:43 PM |
Tagged: western digital, wdc, WD, thunderbolt, My Book Pro

Western Digital has launched a new Thunderbolt RAID-capable external drive called the My Book Pro:


The My Book Pro connects a pair of 3, 4, 5, or 6TB HDD's to a host system via either 20 Gbps Thunderbolt or USB 3.0 (at 5 Gbps). The unit comes preconfigured as a RAID-0 to give full capacities of 6, 8, 10, or 12 TB, but can be switched to RAID-1 or JBOD mode upon connection to a host system. Note that RAID-1 (mirroring) will cut the usable capacity in half - limiting to the capacity of a single drive. As seen above, there are also a pair of USB 3.0 ports at the front of the unit for connecting additional devices to the host via the My Book Pro.


Looking at the rear, we see a pair of Thunderbolt ports (daisy chaining of up to six My Book Pros is supported), as well as a USB 3.0 port.

We are not sure which drives come pre-installed, but the press release clearly states 7200 RPM and since WD just launched a higher capacities of the Red Pro, we'd guess that was their choice here.

Press blast appears after the break.