block-level-mapping · shipping · also Block-mapped FTL

Block-level mapping (FTL)

Block-level mapping translates logical flash-block numbers to physical eraseblocks while retaining each page's offset.

Here block means a group of flash pages, not one host LBA. Classical hybrid FTLs add page-mapped update blocks to block-mapped data blocks. [1]

Relations

related
ftl, page-level-mapping, nand-erase-block

Citations

  1. Gupta, Kim and Urgaonkar. DFTL: Demand-based Selective Caching of Page-level Address Mappings. ASPLOS 2009, sections 2-3. (accessed 2026-10-18)

Further reading

  1. Hesela: Flash Translation Layer technology guide (accessed 2026-10-18)

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Hesela team. Block-level mapping (FTL). Hesela. 2026-10-18. https://hesela.dev/terms/block-level-mapping/