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

New Database Plug-In Reduces Write Amplification in Multi-SSD RAID Configurations

TOKYO--(BUSINESS WIRE)--Kioxia Corporation, 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 approximately 46% and boosted throughput to 8.22x the performance of MDRAID¹. In a 2-drive mirrored configuration, WAF was reduced to approximately 1/3 and achieved throughput 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 two-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.

Notes:

(1) Performance claim based on testing using KIOXIA XD8 series 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.

* Read and write speed may vary depending on various factors such as host devices, software (drivers, OS etc.), and read/write conditions.
* Open Compute Project and OCP marks are owned by and used with the permission of the Open Compute Project Foundation.
* Linux is a registered trademark of Linus Torvalds in the United States and other countries.
* Other company names, product names and service names may be trademarks of third-party companies.

About Kioxia

Kioxia is a world leader in memory solutions, dedicated to the development, production and sale of flash memory and solid-state drives (SSDs). In April 2017, its predecessor Toshiba Memory was spun off from Toshiba Corporation, the company that invented NAND flash memory in 1987. Kioxia is committed to uplifting the world with “memory” by offering products, services and systems that create choice for customers and memory-based value for society. Kioxia'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.

*Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.