KIOXIA Improves Flash Storage Lifespan and Performance in RocksDB with New Open-Source Software

SAN JOSE, Calif., October 9, 2025 – KIOXIA America, Inc. today announced an expanded RocksDB plug-in that enhances SSD lifespan and performance in multi-drive RAID environments. Building on its earlier demonstration of a Flexible Data Placement (FDP)-enabled SSD running RocksDB, the company will showcase this advancement at the upcoming Open Compute Project^® (OCP^®) Global Summit.

In a 4-drive RAID 5 setup, Kioxia’s new plug-in reduced write amplification factor (WAF) by 46% and boosted throughput to 8.22x the performance of MDRAID¹. In a 2-drive mirrored configuration, WAF was reduced to 1/3 and achieved throughput performance of 1.45x compared to MDRAID¹. The technology achieves these gains by consolidating data writes so they are written sequentially – preventing data fragmentation and reducing garbage collection.

RocksDB, widely adopted for generative AI and cloud applications, is optimized for high-performance searches and efficient management of historical data.

The new plug-in will be featured with the KIOXIA XD8 Series SSD in a live demonstration at the Kioxia booth (A51) during the 2025 OCP Global Summit. The demo will showcase performance gains and reduced WAF in a 2-drive RAID 1 configuration with the RocksDB plug-in, compared to standard Linux^® RAID mirroring.

Kioxia will release the plug-in as an open-source contribution, underscoring its commitment to advancing SSD and flash memory technologies industry-wide. By sharing innovations that improve efficiency, Kioxia continues to support the evolving needs of advanced computing infrastructures and data centers. The new plug-in is expected to be released in CQ1 2026.

For more information, please visit www.kioxia.com, and follow the company on X andLinkedIn^®.

About KIOXIA America, Inc.

KIOXIA America, Inc. is the U.S.-based subsidiary of KIOXIA Corporation, a leading worldwide supplier of flash memory and solid-state drives (SSDs). From the invention of flash memory to today’s breakthrough BiCS FLASH™ 3D technology, KIOXIA continues to pioneer innovative memory, SSD and software solutions that enrich people's lives and expand society's horizons. The company's innovative 3D flash memory technology, BiCS FLASH, is shaping the future of storage in high-density applications, including advanced smartphones, PCs, automotive systems, data centers and generative AI systems. For more information, please visit KIOXIA.com.

Notes:

1: Performance claim based on testing in a KIOXIA lab environment. Lifespan measurement based on reduction of Write Amplification Factor (WAF). RocksDB performance improvement based on increase of queries per second.

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Information in this press release, including product pricing and specifications, content of services, and contact information is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable KIOXIA product specifications.