How to find wwn in Redhat Linux?

How to find wwn in Redhat Linux?

a.    Below is the simple command to find WWN on Redhat servers.

systool -c fc_host –v

# systool -c fc_host -v | grep "port_name"
    port_name           = "0x5001438001347fdc"
    port_name           = "0x5001438001347fde"
    port_name           = "0x50014380013471f0"
    port_name           = "0x50014380013471f2"
#

b.    Below is the simple steps to find WWN in Linux.

Step 1:  cd /sys/class/fc_host
Step 2:  cd to the host# directory.
Step 3: cat node_name

Useful command to find to list the FC Adapter

lspci | grep -i Fibre


c.    To find WWN on linux with Emulex:
If you find difficult to find WWN on linux with Emulex HBA use below hbacmd to list the HBAs. This only available if hbanyware installed.

cd /usr/sbin/hbanyware
[root@tilak_phy01 hbanyware]# ./hbacmd ListHBAs

Manageable HBA List
Port WWN   : 11:00:00:00:d9:58:bf:92
Node WWN   : 10:00:00:00:b9:58:ba:92
Fabric Name: 20:3f:01:04:51:a1:71:00
Flags      : 1100a980
Host Name  : tilak_phy01
Mfg        : Emulex Corporation