2) is there a command where I can entirely erase my drives so I can start from scratch? This is a sparc64 build and I can't use fdisk - is newfs
use dd(1) to blow away any trace of raidframe from your disks:
dd if=/dev/zero of=/dev/rsd0{a,c} bs=1024k count=1
That will write a meg of null to the front of the disk and erase the MBR,
Disk Label, Boot Blocks, whatever crud.
~BAS
