mapping-cache · shipping · also cached mapping table, CMT

SSD mapping cache

An SSD mapping cache retains selected logical-to-physical address mappings in memory.

Related Observatory article: SSD mapping cache on hesela.com

This stores locations rather than necessarily caching user data.

Relations

related

ftl, dram-cache-ssd, hmb, translation-page

Citations

1. Shengzhe Wang, Zihang Lin, Suzhen Wu, Hong Jiang, Jie Zhang and Bo Mao. LearnedFTL: A Learning-Based Page-Level FTL for Reducing Double Reads in Flash-Based SSDs. HPCA 2024, pp. 616-629, sections II-IV; DOI 10.1109/HPCA57654.2024.00054. (accessed 2026-10-12)
2. SSD mapping caches: why DRAM size is not a speed rating (accessed 2026-10-12)

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