WWN numbers on linux

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

where n is the host adapter number for your card.

Then you can cat out the messages file and look for your card info to see which scsi host they got loaded on.

[root@aoarnbnfu01 ~]# cat /sys/class/scsi_host/host
host0/ host1/ host2/ host3/ host4/ host5/ 
 
[root@aoarnbnfu01 ~]# cat /sys/class/scsi_host/host0/device/fc_host\:host0/port_name 
0x500110a00017a298
[root@aoarnbnfu01 ~]# cat /sys/class/scsi_host/host1/device/fc_host\:host1/port_name 
0x500110a00017a29a
[root@aoarnbnfu01 ~]# cat /sys/class/scsi_host/host2/device/fc_host\:host2/port_name 
0x10000000c9b3cf04
[root@aoarnbnfu01 ~]# cat /sys/class/scsi_host/host3/device/fc_host\:host3/port_name 
0x10000000c9b3cf05
 
Sep 30 08:21:32 aoarnbnfu01 kernel: scsi0 : qla2xxx
Sep 30 08:21:32 aoarnbnfu01 kernel: qla2xxx 0000:10:00.0: 
Sep 30 08:21:32 aoarnbnfu01 kernel:  QLogic Fibre Channel HBA Driver: 8.03.01.05.05.06-k
Sep 30 08:21:32 aoarnbnfu01 kernel:   QLogic HPAE312A - PCI-Express Dual Port 4Gb Fibre Channel HBA
 
Sep 30 08:21:33 aoarnbnfu01 kernel: Emulex LightPulse Fibre Channel SCSI driver 8.2.0.87.1p
Sep 30 08:21:33 aoarnbnfu01 kernel: Copyright(c) 2004-2009 Emulex.  All rights reserved.
Sep 30 08:21:33 aoarnbnfu01 kernel: ACPI: PCI Interrupt 0000:13:00.0[A] -> GSI 16 (level, low) -> IRQ 50
Sep 30 08:21:33 aoarnbnfu01 kernel: scsi2 :  on PCI bus 13 device 00 irq 50

Method 2: /proc/scsi/{adapter-type}/{n} File

bash-3.00# cat /proc/scsi/qla2xxx/1
QLogic PCI to Fibre Channel Host Adapter for QLA2340-SUN:
        Firmware version 3.03.19 IPX, Driver version 8.01.04
ISP: ISP2312, Serial# E71054
Request Queue = 0x37dc0000, Response Queue = 0x37c50000
Request Queue count = 2048, Response Queue count = 512
Total number of active commands = 1
Total number of interrupts = 5034411
    Device queue depth = 0x20
Number of free request entries = 1264
Number of mailbox timeouts = 0
Number of ISP aborts = 0
Number of loop resyncs = 0
Number of retries for empty slots = 0
Number of reqs in pending_q= 0, retry_q= 0, done_q= 0, scsi_retry_q= 0
Host adapter:loop state = <READY>, flags = 0x1a03
Dpc flags = 0x4000000
MBX flags = 0x0
Link down Timeout = 030
Port down retry = 030
Login retry count = 030
Commands retried with dropped frame(s) = 0
Product ID = 4953 5020 2020 0002
 
 
SCSI Device Information:
scsi-qla0-adapter-node=200000e08b870e30;
scsi-qla0-adapter-port=210000e08b870e30;
scsi-qla0-target-0=50060e8004295542;
scsi-qla0-target-1=50060e8005bd3604;
 
FC Port Information:
scsi-qla0-port-0=50060e8004295509:50060e8004295509:3a000a:81;
scsi-qla0-port-1=50060e8005bd3604:50060e8005bd3604:3a0036:82;
 
SCSI LUN Information:
(Id:Lun)  * - indicates lun is not registered with the OS.
( 1: 0): Total reqs 2, Pending reqs 0, flags 0x0*, 0:0:82 00
( 1: 3): Total reqs 25133, Pending reqs 0, flags 0x0, 0:0:82 00
( 1: 4): Total reqs 5065249, Pending reqs 1, flags 0x0, 0:0:82 00