A new kernel (3.7.7) was released today for the arch linux. Currently, the zfsonlinux in the aur was not adapted on it. I have updated my zfsonlinux automake tool with a more secure option. Before you are going to rebuild the zfs modules, the tool now exports your zpools and imports them after installing new compiled packages. If you want to do it on your own, there are two new targets available - "import" and "export".
I found a nice like about install zfs on gnulinux.
Now up and running .