VMware iSCSI targets in Windows Server Failover Clustering.

Ruwantha Kodikara
Ruwantha Kodikara used Ask the Experts™
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Hi, we have DellEMC VXRAIL VMware vSAN Cluster consist of 4 ESXi hosts. We are using vSAN iSCSI targets hooked up to Virtual Machines for Windows Server 2012 R2, Failover clustering. The cluster works fine after configuring.

However, when I run the cluster validation test, it fails with below error:

Two disks have been found on node SRVVDB01.domain.local that cannot be distinguished from one another. The disks involved have disk signature c10b5a63, SCSI page 83h VPD descriptor iqn.1998-01.com.vmware.52e5e355fe26a1cb-a80ef9982d7fc722,L,0x0000000000000000, SCSI page 80h VPD Serial Number VITSERIALbaebec5cee2b845f0bcde4434b5acd30. Please verify the storage configuration. You must either mask (unpresent, detach) one of these LUNs at this node, or, run validation and specify a disk list that includes only one of these disks, for example by using the Test-Cluster cmdlet in Windows PowerShell.

Please help !!
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Hardware Tester and Debugger
Commented:
Hi there! :)

Please refer to the following article for a possible step by step solution to your problem. The error probably relates to your MPIO configuration.

http://culmor.blogspot.com/2013/03/windows-server-2012-2008r2-with-iscsi.html
Ruwantha KodikaraIT Manager

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Commented:
It works !! Thanks !!!
NoahHardware Tester and Debugger

Commented:
@Ruwantha Kodikara Alright :) Please remember to mark the solution for everyone's convenience.

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