Handojo,
Use the format utility to put the disk space of c4d0 into c4d0s0
and try the zpool attach syntax again, like this:
# zpool attach rpool c3d0s0 c4d0s0
Let the newly added disk resilver by monitoring with zpool status.
Then, install the bootblocks on the newly added disk, like this:
# in
Dear Candy,
This is the log of zpool status, along with partition of c3d0 and c4d0
1. It appears to me that once I destroy the partition of c4d0 and recreate it
again, I get different "slices" in c4d0. I forgot which fdisk partition I
chose, it is either Solaris, Solaris2, or Unix System, and i