reconfs · research · also Reconstructable File System

ReconFS

ReconFS is a research file system that reduces namespace metadata writes using embedded reverse indices and a compact persistence log.

Related Observatory article: ReconFS on hesela.com

Recovery scans the unindexed zone and replays metadata updates; versions reject obsolete pages. The ext2-based Linux 3.10.11 prototype targets namespace consistency, not application data transactions. [1]

Relations

related
F2FS, Crash consistency, Write amplification, Wandering tree problem

Limitations

  • The design assumes atomic page updates and access to page metadata. [1]

Citations

  1. Lu, Shu and Wang. ReconFS: A Reconstructable File System on Flash Storage. FAST 2014, pp. 75-88, sections 2.2-5.4. (accessed 2026-11-13)

Further reading

  1. Hesela: ReconFS metadata reconstruction and the F2FS contrast. (accessed 2026-11-13)
Sources & caveats
  • Primary-source synthesis, not a prototype execution, power-failure experiment or benchmark replication.

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Cite this page
Hesela team. ReconFS. Hesela. 2026-11-13. https://hesela.dev/terms/reconfs/