Case Study: IBM Research's integration of Radian's Zoned Flash SSD
CALABASAS, Calif., July 28, 2020 /PRNewswire/ -- Radian Memory Systems®, Inc. announces an industry first overview of the integration between a purpose-built storage software stack and a zoned Flash SSD, including an analysis of the integration, quantifying development efforts, and performance benchmark results compared to the same software stack using a near identical FTL-based SSD.
The case study includes benchmark results performed by IBM Research with their SoftwAre Log Structured Array (SALSA)  storage software and Radian's RMS-350 U.2 Zoned Flash SSD targeting compliance with the NVM Express™ specification for Zoned Namespaces (ZNS). The benchmark results include block level tests using fio, and system level, application benchmark results running a MySQL® database with SysBench.
Compared to the same configurations with a near identical FTL-based SSD, IBM Research observed block level improvements of 3x in throughput, 50x in tail latencies, and an estimated 3x improvement in wear out. At the system level with MySQL and SysBench, IBM Research observed a 65% improvement in tps, an over 22x improvement in tail latencies, and an estimated 3x improvement in wear out.
While zoned Flash SSDs can provide significant improvements in system performance, integrating them with a host storage management layer often requires extensive software modifications and development efforts. IBM Research was able to rapidly integrate Radian's Zoned Flash SSD with SALSA, including completing functional I/O within one calendar week (two person weeks), and performance tuning in four calendar weeks (eight person weeks).
The complete case study is available for download at…
Radian Zoned Flash SSD
About IBM Research
About Radian Memory Systems
 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)
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SOURCE Radian Memory Systems, Inc.
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