Skip to main content
Pure Technical Services

How-To: Retrieve World Wide Names (WWNs) and iSCSI Qualified Names (IQNs) on Windows Server

Currently viewing public documentation. Please login to access the full scope of documentation.

Below are examples of how to collect WWNs and IQNs using Windows PowerShell on Windows Server. If these methods result in an error, or for WWNs, do not retrieve the data required, please refer to your vendor's Host Bus Adapters (HBA) documentation for the latest methods to collect the information.

World Wide Names (WWNs)

Windows Server 2008 R2 and 2008 R2 (Service Pack 1)

Download the Fibre Channel Information (fcinfo) tool from Microsoft Download Center. Once installed open a Command Prompt or Windows PowerShell session and run the tool. 

C:\>fcinfo

There are 4 adapters:
  com.ciscosystems-Cisco VIC FCoE HBA-0:        PortWWN: 20:00:00:25:b5:11:11:4c    \\.\Scsi0:
  com.ciscosystems-Cisco VIC FCoE HBA-1:        PortWWN: 20:00:00:25:b5:11:11:5c    \\.\Scsi1:
  com.ciscosystems-Cisco VIC FCoE HBA-2:        PortWWN: 20:00:00:25:b5:44:44:4c    \\.\Scsi2:
  com.ciscosystems-Cisco VIC FCoE HBA-3:        PortWWN: 20:00:00:25:b5:44:44:5c    \\.\Scsi3:

When installing the fcinfo tool on Windows Server 2008 R2 (Service Pack 1) an error may be encountered regarding WMI interfaces. This can be ignored and the installation will complete successfully. 

 

Windows Server 2012, 2012 R2, 2016 and 2019

PS C:\> Get-InitiatorPort

InstanceName                                                      NodeAddress      PortAddress      ConnectionType
------------                                                      -----------      -----------      --------------
PCI\VEN_1137&DEV_0045&SUBSYS_00841137&REV_A2\0025B5FFFF22003F00_0 20000025b544000e 20000025b522003f Fibre Channel
PCI\VEN_1137&DEV_0045&SUBSYS_00841137&REV_A2\0025B5FFFF22000F00_0 20000025b544000e 20000025b522000f Fibre Channel
PCI\VEN_1137&DEV_0045&SUBSYS_00841137&REV_A2\0025B5FFFF66003F00_0 20000025b544000e 20000025b566003f Fibre Channel
PCI\VEN_1137&DEV_0045&SUBSYS_00841137&REV_A2\0025B5FFFF66000F00_0 20000025b544000e 20000025b566000f Fibre Channel

iSCSI Qualified Names (IQNs)

Windows Server 2008 R2 and 2008 R2 (Service Pack 1)

Windows Server 2008 R2 has a built in utility called iscsicli.exe. You can use this tool to show the IQNs.

C:\> iscsicli.exe ListTargets
Microsoft iSCSI Initiator Version 6.0 Build 6000

Target List:
     iqn.2001-05.com.example:x-xxxxxx-xxxxxxxxx-xxxxxxxxxxx

The operation completed successfully.

You can also use PowerShell to query the WMI Object Class.

PS C:\> (Get-WmiObject -Namespace root\wmi -Class MSiSCSIInitiator_MethodClass).iSCSINodeName iqn.1991-05.com.microsoft:myserver.local

Windows Server 2012, 2012 R2, 2016 and 2019

The Get-InitiatorPort PowerShell cmdlet also lists and iSCSI IQNs as well as WWNs.

PS C:\> Get-InitiatorPort
InstanceName                                                     NodeAddress                                         PortAddress      ConnectionType
------------                                                     -----------                                         -----------      --------------
PCI\VEN_1077&DEV_2031&SUBSYS_02491077&REV_02\4&29b7c6e4&0&0018_0 2000000e1e1f6bc0                                    2100000e1e1f6bc0 Fibre Channel
PCI\VEN_1077&DEV_2031&SUBSYS_02491077&REV_02\4&29b7c6e4&0&0118_0 2000000e1e1f6bc1                                    2100000e1e1f6bc1 Fibre Channel
ROOT\ISCSIPRT\0000_0                                             iqn.1991-05.com.microsoft:sn1-r720-e04-07.ale.local ISCSI ANY PORT   iSCSI