I'm impressed


OK, installation on Mountain Lion was as simple as can be. Creating a zpool on a slice of my SSD worked, once I updated to Zevo 1.1.1.
A minor glitch: unchecking "show child filesystems ..." in the preference pane removes child filesystems from the sidebar but not
from the desktop. Not a big thing.
Now the first major gotcha:
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$ sudo zpool create -f ZFS /dev/disk0s4
$ sudo zfs create ZFS/Music
$ sudo chown -R pmh:staff /Volumes/ZFS/Music
$ # copy my music files from iTunes there using the Finder
$ cd ~/Music/iTunes/iTunes\ Media
$ mv Music Music.bak
$ sudo zfs set mountpoint=/Users/pmh/iTunes/iTunes\ Media/Music ZFS/Music
*kaboom*
This took down the Finder with shrapnel. The system behaved pretty odd afterwards.
I could not get keyboard focus to any application. Fortunately the power button and
the final mouse click to the confirmation dialog still worked, so I could shutdown
cleanly. After the reboot everything looks like it's running fine. My media files
are on the ZFS, "zpool scrub ZFS" did not show any errors and the volume is mounted
where I intended it to be so iTunes is running just fine:
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$ zfs list
NAME USED AVAIL REFER MOUNTPOINT
ZFS 29,5Gi 17,5Gi 896Ki /Volumes/ZFS
ZFS/Music 29,5Gi 17,5Gi 29,5Gi /Users/pmh/Music/iTunes/iTunes Media/Music
BTW: I do have backup of everything plus all my music files in iTunes Match so I can just
re-download. I just thought it would be a nice smoke test and something for the ZFS
to chew on to put my music there. Plus if it proves stable, my next test will be
zfs send over the network to zfs receive on my FreeNAS box

As you might have guessed, I jumped right into it because I have a couple of years of experience
using ZFS in production on FreeBSD. And I really love it.
Thanks for all the work!
Patrick