The format and content of the Fibre Channel port identifier are determined by the manufacturer of the link control
facility for the applicable Fibre Channel port.
The identifier is an eight-byte field, which the Fibre Channel protocols use to uniquely identify the Fibre Channel port.
The WWPN consists of 16 hexadecimal characters (0 - 9 and A - F). The system uses
it to uniquely identify the Fibre Channel HBA that is installed in your host. The
system automatically finds the WWPN for your host Fibre Channel HBA when you
attach your host to the system. Note: Each Fibre Channel port
has a unique WWPN. There are 1 or more ports per HBA, and therefore 1 or more WWPNs per HBA; each
HBA port has a unique WWPN that must be added to the host
object.