Identify QLogic WWN on Red Hat Enterprise Linux 5 and 4 (RHEL)

Posted by kairo on Thu 13 May 2010

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How to identify/get QLogic WWN on Red Hat Enterprise Linux 5 (RHEL5).

First identify your installed or recognized

# lspci | grep -i fibre 04:00.0 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03) 04:00.1 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03) 05:00.0 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03) 05:00.1 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03)

On  Red Hat Enterprise Linux 5 (5.x) is on /sys/class/fc_host/hostX/port_name

(X is your device 1,2,3,...N)

For get use:

cat /sys/class/fc_host/hostX/port_name

Sample with multiple HBA (Fibre) QLogic

# ls /sys/class/fc_host/ host3  host4  host5  host6 # cat /sys/class/fc_host/host[3-6]/port_name 0x2100001b32936e24 0x2101001b32b36e24 0x2100001b32932821 0x2101001b32b32821

On Red Hat Enterprise Linux 4 (AS/ES) is on /proc/scsi/qla2xxx/1 (1,2,3,..N)

Sample:

# egrep [node|port] /proc/scsi/qlx2xxx/0 scsi-qla0-adapter-node=200000e08b1c19f2; scsi-qla0-adapter-port=210000e08b1c19f2;


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