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Comment by yjftsjthsd-h

4 days ago

What would ZFS do for those issues? I guess maybe deduplication, but otherwise I'm not thinking of anything that you can't do with mount --bind and overlays (and I'm not even sure ZFS would replace overlays)

Snapshots seems to be a cheap feature in ZFS but are expensive everywhere else, for example.

OverlayFS has had performance issues on Linux for a while (once you start composing a bunch of overlays, the performance drops dramatically as well as you start hitting limits on number of overlays).

  • Nowadays the ZFS advantage for snapshots is no longer true.

    Other file systems, e.g. the much faster XFS, have equally efficient snapshots.