Skip to main content
Pure Technical Services

Retrieve World Wide Names (WWNs) on Windows Server

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


Below are examples of how to collect WWNs using Windows PowerShell on Windows Server. If these methods result in an error or do not retrieve the Node World Wide Name (NodeWWN) as shown please refer to your vendor Host Bus Adapters (HBA) documentation for the latest ways to collect the information.


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. 


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 and 2016

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