Linux get the list of FC HBA’s and WWPN

This simple script gives you the list of FC HBA detected in system. It query the sysfs filesystem to get the available fibre channel HBA. Script works for most of the Linux flavors, as specially any of Redhat, SUSE, Fedora and Centos distributions.

This script will not alter any of system configuration rather it just query the sysfs filesystem. Copy the script to server and execute it. Output collected under file “/tmp/hba_list.txt”.


This script will not list the HBA if there is any hardware or driver issue. In such case refer “dmesg“ to troubleshoot further.


# Display available FC Ports and their WWPN
echo "--------------------------------------------------"
echo -e "\tCollecting the available HBA details. \n\tOutput stored as /tmp/hba_list.txt"
echo "--------------------------------------------------"

for hba in `ls -d /sys/class/fc_host/host*`;do
FC_HOST=`basename $hba`
PortID=`cat $hba/port_id`
wwpn=`cat $hba/port_name`
state=`cat $hba/port_state`
speed=`cat $hba/speed`
hba=`cat $hba/symbolic_name`
cat << EOB >> /tmp/hba_list.txt

HBA WWPN : $wwpn PortId: $PortID
HBA State: $state Speed : $speed

Here is the sample of HBA details which has been collected by above script.

#cat /tmp/hba_list.txt

FC-Host: host1
HBA WWPN : 0x5001439994c99988 PortId: 0x100300
HBA State: Online Speed : 4 Gbit

FC-Host: host2
HBA WWPN : 0x5001439994c9998a PortId: 0x0f0300
HBA State: Online Speed : 4 Gbit
There are no attachments for this article.
Related Articles RSS Feed
Viewed 505 times since Fri, Jun 8, 2018
RHEL: Crash kernel dumps configuration and analysis on RHEL 7
Viewed 1071 times since Sat, Jun 2, 2018
RHCS6: Show/Add GFS2/GFS journals
Viewed 744 times since Sun, Jun 3, 2018
Viewed 563 times since Fri, Jul 27, 2018
tcpdump usage examples
Viewed 444 times since Fri, Jul 27, 2018
RHEL: XFS basic operations
Viewed 1202 times since Sat, Jun 2, 2018
Using IOzone for Linux disk performance analysis
Viewed 2409 times since Wed, Jul 25, 2018
Fix rpmdb: Thread died in Berkeley DB library
Viewed 310 times since Fri, Feb 14, 2020
12 Tcpdump Commands – A Network Sniffer Tool
Viewed 542 times since Fri, Jul 27, 2018
RHEL: Rename a network interface on RHEL 7
Viewed 1989 times since Sat, Jun 2, 2018