Subject: Storage | February 5, 2018 - 11:54 PM | Tim Verry
Tagged: toshiba, ssd, SM2258, silicon motion, plextor, BiCS, 3d nand
Plextor is introducing a new SATA SSD option with its 2.5” M8VC and M.2 M8VG solid state drives. The M8V series pairs a Silicon Motion SM2258 controller with Toshiba’s 64-layer 3D TLC NAND (BICS flash) to deliver budget SSDs in 128 GB, 256 GB, and 512 GB capacities. Plextor is using its own Plex Nitro firmware and includes SLC cache, system RAM cache support, Plex Compressor compression, 128-bit ECC and LDPC error correction, and hardware AES encryption. Plextor warranties its M8V series SSDs for three years.
Plextor’s new drives are limited by the SATA 6 Gbps interface and max out at 560 MB/s sequential reads. Sequential writes top out at 400 MB/s for the 128 GB model, 510 MB/s for the 256 GB model, and 520 MB/s for the 512 GB drive. Similarly, 4K random reads and 4K random writes scale up as you add more flash which is shown in the table below. The top-end 512 GB drive hits 82K 4K random read IOPS and 81K 4K random write IOPS. The 256 GB solid state drives are only slightly slower at 81K and 80K respectively. The 128 GB M8V SSDs do not appear to have enough flash channels to keep up with the larger capacity drives though as their performance maxes out at 60K random reads and 70K random writes.
|Plextor M8V Series||128 GB||256 GB||512 GB|
|Sequential Reads||560 MB/s||560 MB/s||560 MB/s|
|Sequential Writes||400 MB/s||510 MB/s||520 MB/s|
|4K Random Read IOPS||60K||81K||82K|
|4K Random Write IOPS||70K||80K||81K|
|Endurance||70 TBW||140 TBW||280 TBW|
|MTBF (hours)||1.5 Million||1.5 Million||1.5 Million|
Plextor rates the M8V series at 0.5 DWPD (drive writes per day) and write endurance of 70 TB for the 128 GB, 140 TB for the 256 GB, and 280 TB for the 512 GB model. Plextor rates them at 1.5 million hours MTBF. These numbers aren’t too bad considering this is TLC flash and they are likely to get more life than the ratings (it’s just not guaranteed).
The SM2258 controller appears to be fairly well established and has also been used by Adata, Mushkin, and others for their budget solid state drives. Plextor did not announced pricing or availability and in searching around online I was not able to find them for sale yet. Its previous S2C series (M7V replacement) SATA drives came in at just under 26 cents/gigabyte using the same SMI 2258 controller but with SK Hynix 16nm planar TLC flash though so I would expect the M8V to come in close to that if not better.
I just wish we could get a SATA 4 standard already to at least get consumer systems up to the 12 Gbps enterprise-oriented SAS can hit. While RAM and GPU shopping may make your wallet cry more than a Steam sale, at least it is a good time to be shopping for storage. What do you think about the influx of budget SSDs? Have you upgraded your family’s PCs to the magical performance of solid state storage yet?
Subject: Storage | January 10, 2018 - 08:17 PM | Tim Verry
Tagged: sm2258xt, SM2258, sata 6Gbs, sata 3, Mushkin, M.2 SATA, CES 2018, CES, 3d nand
In addition to the PCI-E based solid state drives it showed off at CES, Mushkin is adding two new SATA-based SSDs to its Triactor series. The new Triactor 3DL and Triactor 3DX are M.2 and 2.5" form factor SSDs respectively that are available in 120 GB, 250 GB, 500 GB, and 1 TB capacities and utilize 3D TLC NAND flash memory and SMI controllers. Both drives come with M.E.D.S. wear leveling and data protection algorithms and three-year warranties.
The Triactor 3DL is a M.2 2280 form factor SSD that uses a SMI SM2258XT controller with a SATA 3.1 6 Gbps interface. The SM2258XT is a four-channel controller that lacks a DRAM cache. The Triactor 3DL is rated at up to 550 MB/s sequential reads, 505 MB/s sequential writes, 73,000 random 4k read IOPS and 80,000 random 4k write IOPS. Its data protection features include LDPC ECC and algorithms for data shaping, StaticDataRefresh, and wear leveling. While not as impressive as its NVMe M.2 counterparts, it should be a good bit cheaper and compatible with more PCs especially as an upgrade path for older notebooks.
On the other hand, the Triactor 3DX is a more traditional SATA drive that comes in a 2.5" form factor (7mm thick). In this case the 3D TLC NAND flash is paired with a SMI SM2258 controller which is similar to the one above except that it can utilize a DRAM cache and supports AES encryption. The Triactor 3DX is rated at 565 MB/s sequential reads, 530 MB/s sequential writes, 100,000 random 4k read IOPs, and 91,000 random 4k write IOPS. It seems that the cache is helping performance a bit, and the drive is starting to bump up against the real-world limits of the SATA 6 Gbps interface. Since it is of the thinner 7mm type, it will be compatible with most notebooks and desktops.
The new Triactor drives are cheaper options that come in M.2 as well as traditional SATA drives. Mushkin is not talking pricing or availability just yet.
Subject: Storage | July 11, 2017 - 01:42 PM | Jeremy Hellstrom
Tagged: SU900, adata, 256GB, mlc, SM2258, sata ssd
Adata have added a new series of SSDs to their Ultimate lineup, the SU900, which ranges from the 256GB model sent to The Tech Report to review straight through to a 2TB model. This incarnation uses 3D MLC flash but retains the Silicon Motion SM2258 controller which was used on the SU800s. In testing the drive surpassed the previous Ultimate drive but did not quite reach the performance levels of the Samsung 850 EVO in some benchmarks, however it did in the actual usage testing. If you are looking for a drive in that class and have concerns about the longevity of TLC flash, this drive is worth a look.
"Adata has issued an update to its Ultimate line of SSDs with its SU900 family. Join us as we find out how much of an upgrade 3D MLC flash brings to the company's Ultimate drives versus its past forays with 3D TLC NAND."
Here are some more Storage reviews from around the web:
- HP SSD S700 500GB Review @ Neoseeker
- Corsair Neutron NX500 400GB @ Techspot
- Morro Data: Your NAS in the Cloud @ Modders-Inc
- Lexar JumpDrive P20 128GB & S57 256GB USB 3.0 Flash Drive Comparison @ NikKTech
Subject: Storage | November 18, 2016 - 12:53 PM | Jeremy Hellstrom
Tagged: SM2258, 3d nand, adata, Ultimate SU800
Adata's Ultimate SU800 512GB SSD is somewhat of a mixed bag, at $0.27/GB it is not exactly inexpensive nor does it take advantage of some of the SM2258 controllers advanced features, on the other hand it does use Micron's 3D NAND, offer a dynamic SLC cache and is overprovisioned by 64GB. The Tech Report put this SATA SSD to the test in a barrage of benchmarks to see how its performance compared to other SSDs, both SATA and PCIe. Check out their results right here.
"Adata's first 3D NAND SSD, the Ultimate SU800, uses the same Micron flash memory that company deployed in its appealing Crucial MX300. We tested and dissected the SU800 to see whether it lives up to its Ultimate billing."
Here are some more Storage reviews from around the web:
- Samsung 960 EVO M.2 NVMe SSD @ The SSD Review
- Samsung 960 EVO 1TB M.2 PCIe NVMe SSD @ Kitguru
- Apacer Z280 240GB M.2 PCIe NVMe @ eTeknix
- Kingston HyperX Savage USB 3.1 Flash Drive Review @ Hardware Canucks
Subject: Storage, Shows and Expos | January 6, 2016 - 06:00 AM | Allyn Malventano
Tagged: tlc, SM2260, SM2258, SM2256, SM2246EN, slc, SK Hynix, silicon motion, mlc, micron, Intel, imft, CES 2016, CES, 3d nand
Silicon Motion has updated their popular SM2246EN controller to support MLC 3D NAND from IMFT and SK Hynix:
The SM2246EN acts as a gateway for third parties to make their own SSDs. Adding support for 3D NAND is good news, as it means we will be able to see third party SSDs launch with 3D flash sourced from Intel, Micron, or SK Hynix. Another cool tidbit is the fact that those demo units in the above photo were equipped and operating with actual 3D NAND from Intel, Micron, and SK Hynix. Yes, this is the first time seeing packaged MLC 3D NAND from a company other than Samsung. Here are some close-ups for those who want to read part numbers:
Another question on non-Samsung 3D NAND is how does its performance stack up against planar (2D) NAND? Silicon Motion had a bit of an answer to that question for us:
Keep in mind those are results from pre-production firmware, but I was happy to see that my prediction of IMFT 3D NAND speeds being effectively equal to their previous 2D flash was correct.
To knock out some other info overheard at our briefing, Silicon Motion will also be making an SM2258, which will be a TLC 3D NAND variant of the SM2256. In addition, we saw the unreleased SM2260:
...which is Silicon Motion's PCIe 3.0 x4 SSD controller. This one is expected to surface towards the middle of 2016, and it is currently in the OEM testing stage.
Lots more storage goodies coming later today, so stay tuned! Full press blast for the updates SM2246EN after the break.
Follow all of our coverage of the show at http://pcper.com/ces!