How to check WWN and Multipathing on Windows Server

How to check WWN and Multipathing on Windows Server

How to check WWN and Multipathing on Windows Server

There are many ways to find the World Wide Name (WWN) of fiber channel HBA connected to the Windows server operating system and Multipathing in Windows Server

Windows Server 2012-2022

Starting from Windows Server 2012, “Storage Explorer” was removed. We can use PowerShell to find WWN and Multipathing in Windows Server 2012-2022.

For World Wide Names (WWNs) as well as iSCSI IQNs


For ISCSI Connections, run the below PowerShell command:


If you are using MPIO to connect the SAN, run the below PowerShell command

mpclaim -s  -d

Run the below PowerShell command to get all the multipath for the Disk number of the SAN,

Run the list disk command to get the disk number

list disk

Ex:- For Disk 0, append the digit “0” in the command as below, it will show all the multipath

mpclaim -s  -d 0

Windows Server 2008

Storage Explorer – It will show all the FC switches in your storage fabric, with details about what is connected to each port of each switch. It also shows information about other servers connected to the storage fabric, including information about HBAs and LUNs.

How to check WWN and Multipathing on Windows Server

Windows Server 2003/2000

Check  FCINFO (Fibre Channel Information Tool) for Windows 2003 and Windows 2000 servers

This tool is to discover the SAN resources and configuration information on your Fibre Channel SAN

Download the tool from here:

run the “fcinfo” command in Command Prompt. It will show up HBA connected to the server with WWN.

Model Based Utilities

A few model-dependent utilities are:

  1. HBAnyware utility (click here to download)
  2. SANsurfer utility (click here to download)
  3. Hitachi Storage: – please follow the below commands:
dlnkmgr view -pathCheck the multipath output
dlnkmgr view -drvChecking the current settings
dlnkmgr set -lb on -lbtype rrSetting load balancing
dlnkmgr set -pchk on -intvl 10Setting path Health Checking
dlknmgr set -afb onSetting Automatic Failback

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