Seagate Designs RISC-V Cores to Power Data Mobility

Seagate Technology has announced that it has designed two processors based on the open RISC-V instruction set architecture (ISA).

One of the open standards-enabled cores is designed for high performance and the other is area-optimised. The high-performance processor has already been built with RISC-V-enabled silicon and demonstrated as functional in hard disk drives (HDDs). The area-optimized core has been designed and is in the process of being built.

Because both processors offer RISC-V security features, the benefits add up to more robust edge-to-cloud data trustworthiness, security, and mobility—all essential in the era when so much data is on the move.

The announcement, made at the virtual RISC-V Summit 2020, is the first public report on the results of Seagate’s several years of collaboration with RISC-V International.

“Having shipped close to one billion cores over the last year, Seagate has developed significant expertise in system-on-a-chip design,” said Cecil Macgregor, Vice President, Application-Specific Integrated Circuit (ASIC) Development. “We now expanded the capability to add customised RISC-V cores to our portfolio, which is critical to future products. We live in a time of unprecedented growth of enterprise data—and much of this data is in motion. These cores will allow devices to share a common RISC-V ISA. Using open security architectures, they will enable more secure movement of data.”

The high-performance core offers up to triple the performance for real-time, critical HDD workloads versus current solutions. In an initial use case, this core enabled Seagate to dramatically increase the real-time processing power available. The processor paves the way for finer positioning by implementation of advanced servo (motion control) algorithms.

The area-optimised core boasts a highly configurable micro-architecture and feature set. It’s optimised both for footprint and power savings. It powers auxiliary, supporting, or background workloads. It can execute security-sensitive edge computational operations (including next-generation post-quantum cryptography) while targeting a small-footprint implementation of security features over performance.

One of the key use cases for this core is security. A member of OpenTitan, Seagate is committed to open and transparent security.

“We see a significant potential for open, extensible architectures like RISC-V,” said Dominic Rizzo, OpenTitan Project Director and Engineering Lead at Google Cloud. “OpenTitan’s open-source implementation benefits from RISC-V’s open nature, enabling pan-industry transparency, trust, and silicon security. Because Seagate understands the promise of RISC-V for security, we are excited to collaborate with Seagate on the open-source silicon root of trust we are currently developing.”

The Seagate cores will also accelerate real-time analysis in the datacentre and at the edge. Such analysis is crucial to the work of scientific communities with mass data needs.

“At Los Alamos National Laboratory, using computational storage to move processing near data has begun to significantly alter the way we analyze data and perform scientific discovery,” said Brad Settlemyer, Sr Research Scientist at Los Alamos National Laboratory. “By having compute integrated closely with storage we are able to create persistent data transformations that speed up data analysis by 1000-fold. This greatly relieves our primary compute tier from these tasks. We will be continuing our drive toward efficiency gains for our mission needs by partnering with vendors and actively participating in important industry initiatives like computational storage.”

Seagate has determined that solutions on this front tend to involve custom silicon: that's where RISC-V shines.

“Introducing RISC-V to storage devices creates an opportunity to implement application-specific computational capabilities that enable massive parallel computational storage solutions,” John Morris, Seagate’s Chief Technology Officer. “We believe that these architectures support many important use cases that include scientific simulation (for example, weather prediction) as well as the learning part of machine learning.”