Find WWN Number of HBA Card in Redhat Linux & CentOS

::Find WWN Number of HBA Card in Redhat & CentOS::

 # systool -c fc_host -v |grep "port_name"
    port_name           = "0x2100001b321fb7f6"

Alternate method to get

#cat /sys/class/scsi_host/hostN/device/fc_host/hostN/port_name

Check Port State using below command

#cat /sys/class/scsi_host/hostN/device/fc_host/hostN/port_state 

Where “N” is the number of device for your fiber HBAs.