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While regular dedup is only a win for highly specific workload, the file-based deduplication[1][2] which is in the works seems like it can have some potential.

They discussed it, along with some options for a background-scanning dedup service (trying to find potential files to dedup), in the February leadership meeting[3].

[1]: https://openzfs.org/wiki/OpenZFS_Developer_Summit_2020_talks...

[2]: https://youtu.be/hYBgoaQC-vo

[3]: https://www.youtube.com/watch?v=hij7PGGjevc



This sounds cool. Current block dedup really seems like a simple (naive) v1 compared to what should be possible.




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