Solaris ZFS

Creating a mirrored root pool
With ZFS as your primary file system there is no need to mess around with RAID-controllers. To create a mirrored root pool (basically what you would expect from a RAID-1 configuration) figure out the exact pseudo files

root@chlodomer:~# format
Searching for disks...done

0. c1t2d0
1. c1t3d0
2. c3t0d0
Specify disk (enter its number): ^C

and quit immediately pressing Control-C. In this case the two installed hard disks are represented by the pseudo files c1t2d0 and c1t3d0. Thus,

zpool attach rpool c1t2d0 c1t3d0