CALABASAS, Calif., February 20, 2020 — Next week at the USENIX File and Storage Technology (FAST) Conference in Santa Clara, Ca., Radian Memory Systems®, Inc. will provide a live demonstration of IBM®’s software defined log-structured array storage management stack [1] utilizing Zoned Flash SSDs for the first time.  The demonstration will also include an industry first milestone for running a user application (MySQL database) over Zoned Flash SSDs.

A high availability configuration based upon six RMS-350 U.2 SSDs, with Radian’s implementation of Zoned Namespaces (ZNS), will be demonstrated with each SSD accessed simultaneously in dual port mode by separate host controllers in an AIC® HA202-PH storage server.  This demonstration involves two instances of IBM’s software defined log-structured array storage management stack.  Each instance of SALSA accesses one port and 2TB of each of the six RMS-350 Zoned Flash SSDs, representing a single 12TB volume.  The live demonstration will include the following benchmark tests running concurrently on each controller:

  • Block level tests with a single fio tester
  • Block level tests with multiple fio testers (noisy neighbors)
  • MySQL and the SysBench database tester
  • MySQL and the SysBench database tester along with multiple fio testers (noisy neighbors)

SALSA (SoftwAre Log Structured Array)
Developed by IBM Research, SALSA [1] is a flexible, host resident translation layer that can virtualize multiple storage devices (SSDs or HDDs), manage zoned block devices (SMR HDDs, Zoned SSDs, etc.), and be configured to adapt to specific workloads.  Targeting the backend of Software-Defined Storage frameworks, SALSA can expose a Linux block device that can either be used directly by unmodified applications, or mounted by traditional Linux filesystems.

Zoned Namespaces (ZNS)
Targeting compliance with the forthcoming Zoned Namespaces (ZNS) specification from the NVM Express™ industry standards organization, Radian’s implementation of Zoned Flash includes unique functionality such as Idealized Flash, the ASL Configurator, Decoupled Wear Leveling and NAND Maintenance that earned it the 2019 Flash Memory Summit’s ‘Most Innovative Technology’ award for SSD firmware.

About Radian Memory Systems
Radian Memory Systems, Inc. develops technology and products that target system OEMs, cloud providers, and licensing to device manufacturers.  Founded in 2010, thousands of the company’s NVMe storage devices have been successfully deployed in data center applications by some of the industry’s largest OEMs.  To learn more about Radian Memory Systems contact the company at (U.S.) 818 222 4080,, or visit

About IBM Research
IBM Research is one of the world’s largest and most influential corporate research labs, with more than 3,000 researchers in 19 locations across six continents. We play the long game, investing now in tomorrow’s breakthroughs. Watson, the world’s first cognitive system, is the fruit of over 50 years of IBM research in artificial intelligence. Today, it forms a core part of IBM’s business.

Our scientists are charting the future of artificial intelligence, breakthroughs like quantum computing, how blockchain will reshape the enterprise and much more. We are dedicated to applying AI and science to industry challenges, whether it’s discovering a new way for doctors to help patients, teaming with environmentalists to clean up our waterways or enabling retailers to personalize customer service.

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Copyright Radian Memory Systems, Inc., February 2020

SOURCE Radian Memory Systems, Inc.

[1] Ioannou N., Kourtis K., and Koltsidas I. .Elevating Commodity Storage with the SALSA Host Translation Layer. International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems 2018 (MASCOTS’18)