[ysleepy]

I wonder why ZFS is marked as not having de-dupe (deduplication).

AFAIK ZFS has had deduplication support for a very long time (2009) and now even does opportunistic block cloning with much less overhead.

[the8472]

ZFS online deduplication is not comparable with on-demand dedup offered btrfs and xfs and is prohibitively expensive for many workloads.

The new block cloning still had data corruption bugs quite recently.

[BSDobelix]

>ZFS online deduplication is not comparable with on-demand dedup offered btrfs and xfs

But it has de-duplication, with your logic no non-CoW FS should be in that list because they are not comparable.

[prmoustache]

It is still deduplication.

Chart should have a bloc dedup and file dedup separated columns if it is deemed non comparable.

[adrian_b]

Also XFS has deduplication now, already for some time, at least one year or two.

[BlackLotus89]

btrfs has deduplication as well.

In theory full file deduplication exists in every filesystem that has cow/reflink support

[Tobu]

fclones for example covers it well for any filesystem with reflinks:

https://lib.rs/crates/fclones

fclones group |fclones dedupe

[ksec]

Yes I sort of skip-read a lot of it after that.