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 fibre channel HBA connected to windows server operating system
Windows 2012-2022
Started from Windows Server 2012, “Storage Explorer” was removed. To find WWN in Windows Server 2012-2022 we can use PowerShell to perform.
For ISCSI Connections
Get-InitiatorPort
Get-IscsiTargetIf you are using MPIO to connect the SAN
mpclaim -s -dLook for Disk number of SAN for Ex:- MPIO Disk 0 and append the digit “0” in command as below, it will show all the multipaths
mpclaim -s -d 0Windows 2008
Few model dependent utilities are:
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 show information about other servers connected to the storage fabric, including information about HBAs and LUNs.
Windows 2003/2000
1. Check FCINFO (Fibre Channel Information Tool) for windows 2003 & windows 2000 servers
This tool is to discovery 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
then,
run “fcinfo” command in Command Prompt. It will show up HBA connected to the server with WWN.
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 |
