FMS 2014: HGST Announces FlashMAX III PCIe SSDsby Kristian Vättö on August 18, 2014 9:00 AM EST
Continuing with our Flash Memory Summit coverage, HGST announced their FlashMAX III enterprise SSD, which is the first fruit of HGST's Virident acquistion and continues Virident's FlashMAX brand. The FlashMAX III will come in half-height, half-length form factor and will be available in capacities of 1100GB, 1650GB and 2200GB. The controller is an FPGA-based 32-channel design with a PCIe 3.0 x8 interface, but there is no NVMe support since the FlashMAX III builds on the same architecture as the previous generation FlashMAX II.
|HGST FlashMAX III Specifications|
|Form Factor||Half-Height, Half-Length (HH-HL)|
|Interface||PCIe 3.0 x8|
|Controller||32-channel FPGA based|
|NAND||Micron 20nm 64Gbit MLC|
|4KB Random Read||549K IOPS||409K IOPS||531K IOPS|
|4KB Random Write||53K IOPS||30K IOPS||59K IOPS|
|4KB 70/30 Random Read/Write||195K IOPS||145K IOPS||200K IOPS|
|Write Latency||< 30 µsec|
|Max Power||25 watts|
The maximum throughput seems a bit low for a design that uses up eight PCIe 3.0 lanes since 2.7GB/s should be achievable with just four PCIe 3.0 lanes. Obviously performance scaling is not that simple but for example Samsung's XS1715 (which we will be reviewing soon!) is rated at up to 3.0GB/s while only consuming four PCIe 3.0 lanes. Using less PCIe lanes allows for more drives to be delpoyed as the amount of PCIe lanes is always rather limited.
The 1650GB model is even slower due to the fact that it utilizes less NAND channels because it is a middle capacity. Basically, the 1100GB and 2200GB models have the same number of NAND packages, with the 2200GB model having twice as much NAND per package; the 1650GB model uses the higher capacity packages but doesn't fully populate the board. HGST told us that they are just testing the water to see if there is demand for something in between 1100GB and 2200GB.
The FlashMAX III also supports Virident Flash-management with Adaptive Shceduling (vFAS), which is a fancy name for Virident's storage driver. vFAS presents the FlashMAX as a single volume block device to the OS, meaning that no additional storage protocols or controllers are needed, whereas some drives just use a RAID controller or need software RAID solutions to be configured into an array. Additionally vFAS handles NAND management by doing wear-leveling, garbage collection, data path protection, NAND-level parity, ECC, and more.
The FlashMAX III is currently being qualified by select OEMs and will ship later in this quarter.
Post Your CommentPlease log in or sign up to comment.
View All Comments
djepson - Saturday, August 23, 2014 - linkLess expensive than a SAN
mgl888 - Monday, August 18, 2014 - link2.7GB/s seems slow for a 32 channel design. Using 8GB dies, they'd have to have ~4 dies per channel, which should be enough to saturate an 100MHz ONFI DDR channel. Let's assume 200MB/s per channel - that's 6.4GB/s. They're able to achieve less than half of that?
extide - Monday, August 18, 2014 - linkYou're getting bits and bytes messed up. 200MB/sec is only 0.2GB/sec :)
mgl888 - Monday, August 18, 2014 - linkUm.. no I'm not. 200MB/s = 0.2GB/s, and x32 channels - that's 6.4GB/s.
FaaR - Monday, August 18, 2014 - linkThere's obviously some internal inefficiencies that preclude this product working near theoretical max... Most people will probably be quite happy with almost 3GB/s disk I/O... :)
What surprises me is the rather high power dissipation, 25W is some serious wattage; especially for that tiny little passive heatsink. Surely forced aircooling will be a requirement to stop this thing literally frying itself into expensive silicon scrap.
FunBunny2 - Monday, August 18, 2014 - linkAnyone remember an SSD with such pitiful RW IOPS relative to RR IOPS????
extide - Monday, August 18, 2014 - linkInteresting that they are shipping an FPGA based design. I wonder if it is Xylinx or Alterra.
Alex Smith - Tuesday, June 23, 2015 - link"Samsung's XS1715 (which we will be reviewing soon!)"
I can't seem to find a review, and it's been almost a year...?