6027-373 Disk diskName is being replaced, so status of disk diskName must be replacement.
Explanation
The mmrpldisk command failed
when retrying a replace operation because the new disk does not have
the correct status.
User response
Issue the mmlsdisk command
to display disk status. Then either issue the mmchdisk command
to change the status of the disk to replacement or
specify a new disk that has a status of replacement.