Explanation
The World Wide Port Name (WWPN) Prefix is not valid.
Response
Contact your hardware service provider to obtain a valid World-Wide Port Name (WWPN).
Once you have obtained a valid WWPN value, go to ASM and select:
System_Configuration-> Program_Vital_Product_Data-> System_Keywords.
On the System_Keyword menu, enter the value for the 'WN' keyword.
Problem determination
No action is required.