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[kreijack]

Disclaimer, I am an happy BTRFS user since 2010. However there are some workload where BTRFS is(/was) extremely slow. To my mind it come:

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[kreijack]

I can't follow you. BTRFS might be more performant on SMR/Zoned devices than ZFS. However I would prefer the more robust support of RAID5/6/7 of ZFS....

[kreijack]

Looking at the specification I find in ZFS two biggest advantages:
- it has a cache (ARC) integrated, which could mitigate the performance penalties...

[kreijack]

Thanks !!!...

[kreijack]

What are you writing is not true. The creation on a BTRFS filesystem is fast, very fast. The same is adding a disk. The same creating a snapshot. All...

[kreijack]

For a non esoteric setup BTRFS is quite stable (I used it from ~2009) . The worst thing that could happen is low performance for some workload. I.e. doing...

[kreijack]

In BTRFS a subvolume/snapshot are not required to be mounted explicitly. These have a natural placement in the filesystem. When I do a snapshot I set...

[kreijack]

Good question. I will try an answer listing the advantages of zfs/btrfs:
1) cow filesystem (is not an advantage, but see next points)
2)...

[kreijack]

btrfs has both RW and RO snapshot. It doesn't force where a snapshot is placed. So I don't understand (for this specific topics) why ZFS would be better....