Hi,
I think you should:
- break the mirror,
- vgreduce the disk /dev/dsk/c2t1d0s2
- Check if it is ok with dd and the redo the steps from the beginig.
- After that, vgextend the vg00 with the agile device file and then, redo the mirror.
Regards,
"When you look into an abyss, the abyss also looks into you"