Re-labeling a disk on Solaris 


1)   To redirect  PRTVTOC output to a file
     
      # prtvtoc /dev/dsk/c0t0d0s0 > /tmp/ab1

2)  To copy the contents of VTOC from one disk to other
     
      # fmthard -s /tmp/ab1 /dev/rdsk/c0t3d0s2