Blurry Moon (nprofile…tsag) on that note, do you actually use zfs features? Or do you just want the reliability?
Even when I used btrfs I never used snapshotting or anything. I always thought that having any kind of backup (aside from checksums/integrity info) sitting next to live data was silly.
CoW is good I guess, but I thrashed a drive something fierce before I remembered to disable that for VM images.