In the past month, three solid-state storage master designers have released new nvme SSD masters for enterprise customers, which indicates that the SSD market of high-end enterprises / data centers is about to usher in a new round of competition. In addition to the old brands such as microchip and marvelemi, there are also three competitors in the market. Moreover, in recent years, major NAND flash memory manufacturers have increased their efforts in developing their own main controller and supporting firmware. < / P > < p > for the independent SSD master design company, its biggest competitive advantage lies in delivering one-stop / customized firmware solutions to customers, so as to bring new products to the market with the fastest speed. < / P > < p > by simply reusing mature consumer / client master IP, Huirong can easily expand its 8-channel product line to 16 channel solutions. < / P > < p > although the company has not yet shared a specific master block diagram, we suspect that it still uses a similar split design, because we see a dual 32-bit DRAM cache interface in the sm8266 specification sheet. < / P > < p > in terms of NAND interface, it supports a maximum speed of 1200 MT / s, which is consistent with the sm2267 recently released for the mainstream consumer market, but lags behind the upcoming high-end consumer sm2264 master controller (8 channels @ 1600 MT / s). < / P > < p > in other aspects, sm8266 supports up to 128 IO queues and optional nvme functions, such as CMB and 32 namespace. < / P > < p > Huirong also opens the firmware to realize the adjustment of SSD channel, interface and key value. This feature is also very different from sm2270, which is said to be developed specifically for Alibaba’s use cases. < / P > < p > however, most of the industry’s interest in open channel SSD has shifted to the more novel nvme partition namespace standard. < / P > < p > of course, for SSD manufacturers, Huirong sm8266 can still deliver the most mainstream reference design (Master / firmware one-stop solution). < / P > < p > and its subsidiary, Shannon systems, is deploying sm8266 to very large customer drives, which is expected to go into production in 2021. < / P > < p > next, take a look at the FX series SSD reference design of phson, which is different from the company’s previous enterprise / data center solutions, adopting a new master controller that has not been officially named. < / P > < p > even so, the group is equipped with the fourth generation of LDPC error correction engine (consistent with the E16 consumer level pci4.0 SSD Master), which is significantly improved compared with its own 8-channel E12 data center master solution. < / P > < p > as the most conservative of the three new main control models introduced in this paper, it also means that FX series products can be launched quickly. It is said that qunlian has begun to ship related products. < / P > < p > finally, FaDu delta SSD controlled by fc4121 is introduced. As a relatively young master design enterprise, it was founded in 2015 and launched the first ASIC (fc3081) Master in 2018. < / P > < p > this year, the company launched the second fc4121 new master controller, upgraded the interface to PCI 4.0, increased the number of flash channels from 8 to 12, and increased the speed from 800 MT / s to 1200 MT / s. < / P > < p > it is worth mentioning that fc4121 is the first new master controller to adopt risc-v processor core architecture. As a reference, the previous generation of fc3081 “Annapurna” master uses the s51 core of sifive. < / P > < p > in addition, FaDu firmware supports a variety of advanced optional nvme features, such as master internal buffer (CMB), persistent memory region (PMR), SR-IOV virtualization, IO determinism, and partition namespace. Google said the proposed media negotiation rules would put its free services in Australia at “risk”