dasd-eckd.b3f650 <bus ID of the DASD>: The newly added channel path <logical path mask> will not be used because it leads to a different device <UID>
Explanation
The newly added channel path has a different UID than the DASD device. This indicates
an incorrect cabling. This path is not going to be used.
User response
Check the cabling of the DASD device. Disconnect and reconnect the cable.