Steve,  For a particular array, the WWNN is the same for all ports, and the WWPN is unique for each port.  You can validate this by looking at the 'WWN Node Name' and 'WWN Port Name' values for each port in the output of 'symcfg list -fa all -v'.  For example:  $ symcfg -sid 1276 list -fa all -v |grep "Node Name" |sort -u |wc -l 1 $ symcfg -sid 1276 list -fa all -v |grep "Port Name" |sort -u |wc -l 72  Thanks,  - Sean
Hello  Can someone please explain the WWNN and WWPN details for VMAX Engines based on my quesiton below.  Does each director have a unique WWNN or is the same WWNN used for all directors in the cluster. Is it just the WWPN which is unique.
Symmetrix WWNN