Creating a ZFS RAID pool
From Peter Pap's Technowiki
Again, ridiculously simple:
zpool create poolname raidz disk1 disk2 disk3 ......
So it would look like:
zpool create storage raidz c1t2d0 c1t3d0 c1t4d0 c1t5d0 c1t6d0 c1t7d0
This will create a RAID 5 pool, single parity, by default. If you have disks to burn and want the extra safety of dual parity RAID 6, then do:
zpool create storage raidz2 c1t2d0 c1t3d0 c1t4d0 c1t5d0 c1t6d0 c1t7d0
By default the RAID pool, like all ZFS pools, will be mounted at /poolname. In this example, it would be mounted at /storage