to create the mirror assuming neither drive is the rpool drive it should look more like this
"pfexec zpool create nameOfPool mirror c5t0d0 c5t1d0" the t0 or t1 specify a different disk. If one of them is the root rpool then you have to add the slice s0 to the end cause the swap partition can't be added to a whole disk mirror with rpool. It's been a while if that doesn't work try swapping the name and raid type around. The -f is often used if there is already a pool specified on one of the disks. -- This message posted from opensolaris.org