[zfs] BSD ZFS vs. illumos ZFS

Matthew Ahrens mahrens at delphix.com
Wed Oct 9 17:09:59 UTC 2013


On Wed, Oct 9, 2013 at 9:49 AM, Pawel Jakub Dawidek <pjd at freebsd.org> wrote:

> On Wed, Oct 09, 2013 at 06:36:02PM +0200, Radio młodych bandytów wrote:
> >
> > Openzfs has a nice feature comparison:
> > http://open-zfs.org/wiki/Features
>
> It clearly wasn't done by a FreeBSD person:)
>
> The features available only in FreeBSD:
> - TRIM support (actually also in ZoL, AFAIK).
> - Ability to boot from any ZFS pool (other platforms are limited to one
>   top-level vdev which can be either disk or a mirror (I hope that's
>   correct)).
> - Quick listing when using options '-o name -s name' - it is at least
>   100 times faster than alternatives. Very handy when there is huge
>   number of snapshots.
> - ZFS-super-owner - allows regular users to perform file system
>   operations as root. This is possible when the file system was mounted
>   by the user, the user is owner of this file system (we force nosuid
>   option then). Used in FreeBSD netperf cluster, so regular users can
>   installworld (which set proper ownership of files) to their netbooted
>   datasets from a build machine.
>
> I'm sure I'm missing some.
>
> PS. Yes, I know I should just put it onto wiki, but if anyone has some
>     spare cycles I'd be grateful for doing it.
>
>
I added it to the Talk page (http://www.open-zfs.org/wiki/Talk:Features).
 Would be great if someone from the FreeBSD community could take the time
to verify, format and document these on the Features page.

--matt


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