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
Get-InitiatorPort
For ISCSI Connections, run the below PowerShell command:
Get-IscsiTarget
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.
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:
http://www.microsoft.com/en-us/download/details.aspx?id=17530
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:
- HBAnyware utility (click here to download)
- SANsurfer utility (click here to download)
- Hitachi Storage: – please follow the below commands:
dlnkmgr view -path | Check the multipath output |
dlnkmgr view -drv | Checking the current settings |
dlnkmgr set -lb on -lbtype rr | Setting load balancing |
dlnkmgr set -pchk on -intvl 10 | Setting path Health Checking |
dlknmgr set -afb on | Setting Automatic Failback |
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