The page includes instructions on how to download and install the latest binaries as well as how to download and compile the source code itself. I will do my best to keep the page current and will post new bits to the page as we fix more bugs. I will also be adding a list of bugs fixed with this and each ZFS release for all of you interested in the changes made since zfs-59. So if you’re feeling bleeding edge, and I’m hoping you are, please try out the newest bits. As always comments, suggestions, complaints, and bug reports are all very welcome.

http://zfs.macosforge.org/

vintage:~/Desktop/Downloads/zfs-102A ilyxa 16:13:55$ uname -a
Darwin vintage.local 9.1.0 Darwin Kernel Version 9.1.0: Wed Oct 31 17:48:21 PDT 2007; root:xnu-1228.0.2~1/RELEASE_PPC Power Macintosh
vintage:~/Desktop/Downloads/zfs-102A ilyxa 16:14:23$ sudo zpool upgrade -v
This system is currently running ZFS pool version 8.

The following versions are supported:

VER DESCRIPTION
— ——————————————————–
1 Initial ZFS version
2 Ditto blocks (replicated metadata)
3 Hot spares and double parity RAID-Z
4 zpool history
5 Compression using the gzip algorithm
6 pool properties
7 Separate intent log devices
8 Delegated administration
For more information on a particular version, including supported releases, see:

http://www.opensolaris.org/os/community/zfs/version/N

Where ‘N’ is the version number.
vintage:~/Desktop/Downloads/zfs-102A ilyxa 16:14:25$

А последняя версия – http://www.opensolaris.org/os/community/zfs/version/10/ . Неплохо 🙂