Duplicate disk signatures or disk GUIDs

Question

_{Tuesday, November 19, 2019 6:13 PM}

Two disks have been found on node ***** with duplicate disk signatures or disk GUIDs. The disks involved are physical disk 1 and physical disk 2. There may be a Multipath I/O (MPIO) problem such as the software is not installed or is not working properly. If MPIO is not involved, or MPIO has been verified as working, you must either mask one of these disks off 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.

I am getting this error while running Cluster validation in windows Server 2016.

All Disks formatted and renamed.

MPIO installed and added

DELL storage connected through fiber

Total 9 DISKS only for 2 DISKS it is failing.

Can someone quickly help me on this?

Why is this issue occuring?

Is it windows error or Storage configuration wrong?

Please assist?

Thanks

All replies (10)

_{Wednesday, November 20, 2019 7:59 AM}

Hi,

Thank you for posting in forum!

Please confirm your storage compatible with server 2016 and your do not use the disk which marked as active and please confirm all your node have the same update and hotfix.

Hope this can help you. Please let us know if you would like further assistance.

Best Regards,

Lily Yang

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_{Friday, November 22, 2019 1:41 AM}

Hi,

Just checking in to see if the information provided was helpful. 

Please let us know if you would like further assistance.

Best Regards,

Lily

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

_{Saturday, November 23, 2019 5:39 PM}

Storage is compatible.

Update and hotfix are same in both the servers

_{Saturday, November 23, 2019 5:51 PM}

Storage is compatible.

Update and hotfix are same in both the servers

_{Monday, November 25, 2019 7:52 AM}

Hi,

1.Please provide me with more details:

   What type of 9 disks are they?

2.Please check if MPIO is installed and added correctly.

1） 1）Launch the MPIO utility, check if all of the devices that have been added appear in the “MPIO Devices” tab.

2） 2）Select the “Discover Multi-Paths” tab, check if the local array controller is listed. You should not add it to the devices.

Hope this can help you. Please let us know if you would like further assistance.

Best Regards,

Lily Yang

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

_{Monday, November 25, 2019 9:29 AM}

1.Please provide me with more details:

   What type of 9 disks are they?

Ans: SAN DISK from DELL connected with Fiber.

2.Please check if MPIO is installed and added correctly.

Yes, MPIO is installed

1）Launch the MPIO utility, check if all of the devices that have been added appear in the “MPIO Devices” tab.

YES

2）Select the “Discover Multi-Paths” tab, check if the local array controller is listed. You should not add it to the devices.

Yes, It will be listed, but we add it in “Discover Multi-Paths” and after that it disappears from the list in “Discover Multi-Paths” Tab.

_{Monday, November 25, 2019 9:33 AM}

Before we add it in “Discover Multi-Paths” Tab it will display like "DELL MD36xxf" as Device hardware id once we add it disappears from that list.

_{Tuesday, November 26, 2019 2:58 AM}

Hi，

Could you lauch the MPIO utility and post the screenshots of MPIO Devices tab and Discover Multi-Paths tab?

Please let us know if you would like further assistance.
Best Regards,
Lily Yang

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If you have feedback for TechNet Subscriber Support, contact [email protected].

_{Thursday, November 28, 2019 2:25 AM}

Hi,

Just checking in to see if the information provided was helpful. 

Please let us know if you would like further assistance.

Best Regards,

Lily

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If you have feedback for TechNet Subscriber Support, contact [email protected].

_{Monday, December 2, 2019 5:23 AM}

Hi,

Was your issue resolved? 

If you resolved it using our solution, please "mark it as answer" to help other community members find the helpful reply quickly.

If you resolve it using your own solution, please share your experience and solution here. It will be very beneficial for other community members who have similar questions.

If no, please reply and tell us the current situation in order to provide further help.

Best Regards,

Lily

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