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On FreeBSD 11.x and 12.x (and older ones) the currently by default remains the old (not ZFS on Linux) ZFS implementation that has lots of FreeBSD additions like TRIM that was lacked on Linux.

FreeBSD forked ZFS on Linux GitHub repo and now its called ZFS on FreeBSD. You can try it already by installing these two ports:

- sysutils/zol

- sysutils/openzfs-kmod

Regards, vermaden

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Damn, I could've used this a few weeks ago. I moved my NAS from bare Ubuntu + ZoL to FreeNAS, and got stuck on a read-only pool because of unsupported features such as userobj_accounting (1). I had to zfs send/receive to external drives and back again to work around this, which was annoying, to say the least.

[1] http://open-zfs.org/wiki/Feature_Flags

This is kind of standard faire though. I did a `zpool upgrade` on my root pool once and broke GRUB's ability to boot my system, since there were features enabled that it didn't understand (wouldn't have hurt anything to ignore, but GRUB wants to play it safe obviously).

>FreeBSD forked ZFS on Linux GitHub repo and now its called ZFS on FreeBSD. You can try it already by installing these two ports:

Correct me if I am wrong, So we now have

Oracle ZFS, FreeBSD ZFS, ZFS on Linux and ZFS on FreeBSD?

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