Put your disks in raid 0+1
you can use like this
PHP Code:
prtvtoc /dev/rdsk/c2t0d0s2 | fmthard –s - /dev/rdsk/c2t1dos2
with this command you will get information about disks
and this command copy all data from mirror to primary HDD
metadb –afc3 c2t0d0s2 c2t1d0s2