At the SSD Design and Control Technology Forum of the conference, Dr. Luo Jianjun, President of Huasheng Microelectronics, delivered a speech on the theme of “Flash Controller Architecture”. Starting from his nearly 20 years of storage controller design experience, Dr. Luo Jianjun was present. The guests shared the experience of Huayingwei's storage controller. Under the premise of storage reliability, it must have its own accumulation, including patent accumulation, IP accumulation, protocol accumulation, and experience accumulation, in order to be able to do storage controllers. Customer trust. These technical foundations are not available only through purchase and authorization. Chinese companies need to further strengthen their 'internal strength' cultivation and attach importance to technology accumulation. Huatuo Micro can maintain sustained high growth in shipments and enter the international market. On this basis.
From the initial USB, SD, CF of flash applications to today's NVMe controllers, Dr. Luo Jianjun pointed out that there have been new changes in the flash controller architecture, and the new controller architecture will meet more challenges. All changes All are designed to give customers more reliable stability, higher performance and economical ease of use.
First, the development of four generations and five generations of PCIe technology and the updated version of NVMe technology can provide users with higher bandwidth and more convenient applications. Secondly, more economical flash memory needs to use better error correction algorithms, such as LDPC and the future. Better error correction algorithms, third, more enterprise-level products and sub-application requirements will place higher demands on storage controllers, such as Multi Namespace and controllers with computing capabilities.
He further pointed out that the future development of controllers, storage density orientation and performance orientation will be the focus of future development of storage controllers. With the development of flash manufacturing technology from SLC, 2D to the current TLC, QLC and 3D, the cost is reduced The increase in storage density is getting faster and faster. In recent years, international manufacturers have introduced high-density solid-state hard disks. How to improve storage density is a major challenge for controller development. Compared with the difficulty of expanding the capacity of traditional HDD manufacturing processes, SSD The increase in storage density also provides a good solution for the development of high-density storage such as data centers. In addition to the size requirements of controllers, in addition to the need to drive a large number of flash granules, the increase in chip pins is also The development of large capacity and small volume has brought a lot of difficulties.
To this end, the controller architecture with built-in RAID and SWITCH capabilities will not only help increase density, but also provide more protection for data stability, combining enterprise-class product features that are more suitable for customer applications and adapting to cloud computing big data. Application requirements will better promote the iteration of domestic products and promote Chinese storage enterprises to further lead storage development. In this technology, Hua Wei has published many papers worldwide, with global patents, in terms of specific product realization, Hua Weiwei By driving more flash media, the storage capacity is increased to 2.5 inches and the high density of 10TB and 20TB in a single 9mm thickness provides customers worldwide with the best choice in capacity density.
In addition, the Ethernet interface will be an important milestone for the future development of SSD. Compared with today's SSDs, it is necessary to exchange data with other devices. In the future, SSDs equipped with Ethernet interfaces will directly replace NAS, ordinary servers, instead of SATA, SAS. , SSD of PCIE interface. Further, Ethernet interface SSD with SDS (Software Defined Storage) function, combined with lower cost SDN (Software Defined Network) network switch, will be for data center, cloud service, personal Applications provide simpler, more reliable and economical data services.
On the other hand, in the development of storage performance, the combination of multiple DRAMs and multiple flash memories and the combination of upper application systems will provide various combinations of NVDIMMs, in order to improve higher IOPS and more complex functions such as edge computing, Artificial algorithmic implants provide a more efficient fit, making future storage more efficient, reliable, and more widely available. For example, NVDIMM-N, which is currently being used by various system vendors, will be further developed in the future. Technology, etc. In this development direction, Hua Weiwei also has a number of patents, and through the exchanges with international organizations, gradually formed their own technology accumulation.
Although this technology has not been widely used, it is a new technology that is worthy of investment by domestic manufacturers and has development significance in the future. Dr. Luo Jianjun stressed at the meeting that Chinese companies need to plan ahead and participate in standard construction and patent accumulation in the early stage of technology development. Taking this opportunity to develop together with international manufacturers, relying on the independent innovation of domestic manufacturers, combined with more domestic large-scale segmentation applications, standing on the same starting line with international manufacturers, jointly building international storage standards, winning storage quality. The future of application.
In the development of key technologies for storage, Dr. Luo Jianjun gave the advantages and opportunities for developing encryption hardware IP in storage controllers. As a storage controller enterprise that passed the national secret algorithm certification in 2013, Hua Weiwei took advantage of its own high-speed encryption. The world's largest shipments of storage encryption applications, with the world's best related vendor customers, random discrete data such as Homogeneous technology brought by encryption technology also provides better help for data reliability. Domestic manufacturers through the mastery of the technology Combined with the high-speed encryption application of the domestic national secret algorithm, it can open another application window for Chinese storage controller enterprises, and can break the imprisonment of the US AES 256 encryption algorithm chip, providing information security based on domestic chips and storage applications.
Finally, as one of the organizers of the Global Flash Summit (FMS) next month, Dr. Luo Jianjun invited the guests to participate in the FMS held in Santa Clara, Silicon Valley, USA. He admits that he hopes to bring FMS to China together with the organizer of this conference. Let domestic storage companies have more opportunities to interact with international counterparts. Chinese companies must integrate into the international market, build a wider range of storage applications through the strong cooperation of upstream and downstream manufacturers in the industry chain, and have their own independent innovation advantages. Enterprises are pushing the world, allowing domestic storage to bloom in applications around the world, and enjoying the wonderful experience that Chinese storage brings to them.