系統的/proc/scsi/qla2xxx目錄下一般存在兩個檔案：1、2或者3、4，這些檔案包含FC HBA卡的配置資訊。

[root@localhost qla2xxx]# cat 3

QLogic PCI to FibreChannel Host Adapter for QLA2342:

Firmware version 3.03.18IPX, Driver version 8.01.02-d4

ISP:ISP2312, Serial# P21735

RequestQueue = 0x11f580000,Response Queue = 0x11f4d0000

Request Queue count =4096, Response Queue count = 512

Total number of activecommands = 0

Total number ofinterrupts = 3354

Device queue depth = 0x10

Number of freerequest entries = 4094

Number of mailboxtimeouts = 0

Number of ISP aborts= 0

Number of loopresyncs = 0

Number of retries forempty slots = 0

Number of reqs inpending_q= 0, retry_q= 0, done_q= 0, scsi_retry_q= 0

Host adapter:loopstate = <READY>, flags = 0x1a03

Dpc flags = 0x4000000

MBX flags = 0x0

Link down Timeout =000

Port down retry = 035

Login retry count =035

Commands retried withdropped frame(s) = 0

Product ID = 49535020 2020 0002

SCSI DeviceInformation:

scsi-qla0-adapter-node=2000001882374738;

scsi-qla0-adapter-port=2100001882374738;

FC Port Information:

scsi-qla0-port-0=200000188237b206:210000188237b206:010a00:81;

SCSI LUN Information:

(Id:Lun) * - indicates lun is not registered with theOS.

其中，SCSI Device Information下面的scsi-qla0-adapter-port=2100001882374738便是主機光纖卡的WWN號。

RedHat AS5系統的/sys/class/fc_host/host*/port_name 這個檔案包含了所有已被系統發現的FC HBA卡的資訊，使用檢視命令檢視該檔案的內容即可看到FC HBA卡的資訊。

檢視WWPN：cat/sys/class/fc_host/host*/port_name

檢視WWNN：cat/sys/class/fc_host/host*/node_name