ZFS is coming to the Mac, according to the Apple website. But it isn’t here yet. In the meantime, you can learn a lot about some upcoming technology without ever downloading a single trial copy of Mac OS X by using the hobbled ZFS implementation on Leopard or a full version hosted on OpenSolaris, or another OS that has full ZFS support. ZFS on most *nix systems follows the same command line structures for the most part. For example, running the following command will show you each of your ZFS mount points and if you can’t actually write to any volumes (as is the case with 10.5.x), the OS will…