How to find the WWN of a host bus adapter
Before physically attaching the storage system to hosts, some preparation work needs to be performed. After you verify that the Fibre Channel adapters and device drivers are installed on the open-system hosts, you must find the World Wide Name (WWN) of each host bus adapter that will be connected to the storage system.
The WWN is a unique identifier (16 hexadecimal digits) for a host bus adapter in an open-systems host. The method for finding the WWN of a host adapter depends on the operating system of the host. Make sure to record the WWNs of the host adapters, because you will need to enter these WWNs in Device Manager - Storage Navigator windows when you specify the hosts connected to your storage system.