CMMVC8097E The command failed because a duplicate WWNN has been detected.
Explanation
This error can occur if a duplicate worldwide node name (WWNN) is detected when you run the chnodeip command.
User response
Issue the satask chvpd -wwnn WWNN command to change the duplicate WWNN. For more information about correcting duplicate WWNNs, see the documentation for node error 556.