A World Wide Name (WWN) or World Wide Identifier (WWID) is a unique identifier which identifies a particular Fibre Channel, Advanced Technology Attachment (ATA) or Serial Attached SCSI (SAS) target. Each WWN is an 8 byte number derived from an IEEE OUI and vendor-supplied information.
>There are two formats of WWN defined by the IEEE:
- Original format: addresses are assigned to manufacturers by the IEEE standards committee, and are built into the device at build time, similar to an Ethernet MAC address. First 2 bytes are either hex 10:00 or 2x:xx (where the x’s are vendor-specified) followed by the 3-byte vendor identifier and 3 bytes for a vendor-specified serial number
- New addressing schema: first nibble is either hex 5 or 6 followed by a 3-byte vendor identifier and 36 bits for a vendor-specified serial number
To find the WWN numbers of your HBA card in Sun Solaris, you can use one the following procedures
Using fcinfo (Solaris 10 only)
This is probably the easiest way to find the WWN numbers on your HBA card. Here you can see the HBA Port WWN (WWpN) and the Node WWN (WWnN) of the two ports on the installed Qlogic HAB card.
This is also useful in finding the Model number, Firmwar version FCode, supported and current speeds and the port status of the HBA card/port.
root@ Solaris:/root# fcinfo hba-port | grep WWN
HBA Port WWN: 4800001b32xxxxxx
Node WWN: 2000001b32xxxxxx
HBA Port WWN: 4801001b32yyyyyy
Node WWN: 2001001b32yyyyyy
For detailed info including Make & model number, Firmware, Fcode and current status and supported/current speeds then
root@ Solaris:/root# fcinfo hba-port
HBA Port WWN: 4800001b32xxxxxx
OS Device Name: /dev/cfg/c2
Manufacturer: QLogic Corp.
Model: 375-3356-02
Firmware Version: 4.04.01
FCode/BIOS Version: BIOS: 2.0; fcode: 2.0; EFI: 1.8;
Type: N-port
State: online
Supported Speeds: 1Gb 2Gb 4Gb
Current Speed: 4Gb
Node WWN: 2000001b32xxxxxx
HBA Port WWN: 4801001b32yyyyyy
OS Device Name: /dev/cfg/c3
Manufacturer: QLogic Corp.
Model: 375-3356-02
Firmware Version: 4.04.01
FCode/BIOS Version: BIOS: 2.0; fcode: 2.0; EFI: 1.8;
Type: unknown
State: offline
Supported Speeds: 1Gb 2Gb 4Gb
Current Speed: not established
Node WWN: 2001001b32yyyyyy
Using scli
root@ Solaris:/root# scli -i | egrep “Node Name|Port Name”
Node Name : 20-00-00-1B-32-XX-XX-XX
Port Name : 21-00-00-1B-32-XX-XX-XX
Node Name : 20-01-00-1B-32-YY-YY-YY
Port Name : 21-01-00-1B-32-YY-YY-YY
For more detailed info on the HBA Cards run as follows: Similar to fcinfo but also provides Model Name and serial number.
root@ Solaris:/root# scli -i
——————————————————————————
Host Name : Solaris
HBA Model : QLE2460
HBA Alias :
Port : 1
Port Alias :
Node Name : 20-00-00-1B-32-XX-XX-XX
Port Name : 21-00-00-1B-32-XX-XX-XX
Port ID : 11-22-33
Serial Number : AAAAAAA-bbbbbbbbbb
Driver Version : qlc-20080514-2.28
FCode Version : 2.0
Firmware Version : 4.04.01
HBA Instance : 2
OS Instance : 2
HBA ID : 2-QLE2460
OptionROM BIOS Version : 2.0
OptionROM FCode Version : 2.0
OptionROM EFI Version : 1.08
OptionROM Firmware Version : 4.00.26
Actual Connection Mode : Point to Point
Actual Data Rate : 2 Gbps
PortType (Topology) : NPort
Total Number of Devices : 2
HBA Status : Online
——————————————————————————
Host Name : Solaris
HBA Model : QLE2460
HBA Alias :
Port : 2
Port Alias :
Node Name : 20-01-00-1B-32-YY-YY-YY
Port Name : 21-01-00-1B-32-YY-YY-YY
Port ID : 00-00-00
Serial Number : AAAAAAA-bbbbbbbbbb
Driver Version : qlc-20080514-2.28
FCode Version : 2.0
Firmware Version : 4.04.01
HBA Instance : 3
OS Instance : 3
HBA ID : 3-QLE2460
OptionROM BIOS Version : 2.0
OptionROM FCode Version : 2.0
OptionROM EFI Version : 1.08
OptionROM Firmware Version : 4.00.26
Actual Connection Mode : Unknown
Actual Data Rate : Unknown
PortType (Topology) : Unidentified
Total Number of Devices : 0
HBA Status : Loop down
Using prtconf
root@ Solaris:/root# prtconf -vp | grep -i wwn
port-wwn: 4800001b.32xxxxxx
node-wwn: 2000001b.32xxxxxx
port-wwn: 4801001b.32yyyyyy
node-wwn: 2001001b.32yyyyyy
Using prtpicl
root@ Solaris:/root# prtpicl -v | grep wwn
:node-wwn 20 00 00 1b 32 xx xx xx
:port-wwn 21 00 00 1b 32 xx xx xx
:node-wwn 20 01 00 1b 32 yy yy yy
:port-wwn 21 01 00 1b 32 yy yy yy
Using luxadm
Run the following command to obtain the physical path to the HBA Ports
root@ Solaris:/root$ luxadm -e port
/devices/pci@200/pci@0/pci@9/SUNW,qlc@0/fp@0,0:devctl CONNECTED
/devices/pci@200/pci@0/pci@9/SUNW,qlc@0,1/fp@0,0:devctl NOT CONNECTED
With the physical path obtained from the above command, we can trace the WWN numbers as follows. here I use the physical path to the one that is connected:
root@ Solaris:/root$ luxadm -e dump_map /devices/pci@200/pci@0/pci@9/SUNW,qlc@0/fp@0,0:devctl
Pos Port_ID Hard_Addr Port WWN Node WWN Type
0 123456 0 1111111111111111 2222222222222222 0×0 (Disk device)
1 789123 0 1111111111111111 2222222222222222 0×0 (Disk device)
2 453789 0 4800001b32xxxxxx 2000001b32xxxxxx 0×1f (Unknown Type,Host Bus Adapter)