How to check HBA and get WWPN in RHEL5 or Later

How to check  HBA   and get WWPN  in RHEL5  or Later

Findout what hba adapter is running

# lspci |grep -i -e fib -e hba

You will get output like this.

29:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02)

29:00.1 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02)

To get wwpn on RHEL (Red Hat) 5.3  or later just run this command:

For a QLogic adapter that is shipped with RHEL 5.x or later, the adapter WWPN information might not be available in the/proc/scsi/adapter_type/n directory because of the migration to sysfs, If this is the case, run the following command:

cat /sys/class/scsi_host/hostn/device/fchost\:hostn/port_name

where n is the host adapter number for your card.

For Example:

[root@baskar.com proc]# cat /sys/class/scsi_host/host0/device/fc_host\:host0/port_

port_id     port_name   port_state  port_type

[root@baskar.com proc]# cat /sys/class/scsi_host/host0/device/fc_host\:host0/port_id

0x4d8207

[root@baskar.com proc]# cat /sys/class/scsi_host/host0/device/fc_host\:host0/port_name

0x21000024ff200966

[root@baskar.com proc]# cat /sys/class/scsi_host/host0/device/fc_host\:host0/port_state

Online

[root@baskar.com proc]# cat /sys/class/scsi_host/host0/device/fc_host\:host0/port_type

NPort (fabric via point-to-point)