Imaage daata disk issue in the Azure Scalesets

Varma 1,255

When I tried to update scaleset with latest image giving following error Virtual Machine Scale Set Name: "Scaleset-NAME"): compute.VirtualMachineScaleSetsClient#Update: Failure sending request: StatusCode=409 -- Original Error: Code="OperationNotAllowed" Message="Operation 'Virtual Machine Scale Set' is not allowed on Update Virtual Machine Scale Set 'Scaleset-NAME since the number of data disks 1 in new Image differs from the number of data disks 0 in the previous Image."

KarishmaTiwari-MSFT 18,747 Reputation points Microsoft Employee

2024-01-16T10:45:00.26+00:00

I am looking into it and will get back shortly. Thanks.
Varma 1,255 Reputation points

2024-01-17T04:00:49.46+00:00

HI Karishma, Any luck?
KarishmaTiwari-MSFT 18,747 Reputation points Microsoft Employee

2024-01-17T11:50:00.74+00:00

@Varma Can you please share the exact steps that you followed so that I can try to reproduce on my end.
Share if you are following any documentation URL as well as configuration details.
Anand Prakash Yadav 7,775 Reputation points Microsoft Vendor

2024-01-23T07:08:27.68+00:00

@Varma just checking if you had the chance to look into the above question.
Varma 1,255 Reputation points

2024-01-23T14:22:55.7866667+00:00

I will share deatils, We have images in build agent gallery and we add the new image verify frequently. but too often we see this message when trying to update new image. FYI: After detaching data disk in the current image ( from respective VM) above error is gone. I verified all the data disk count from all Virtual machinens of respective images , data count is same.
KarishmaTiwari-MSFT 18,747 Reputation points Microsoft Employee

2024-01-29T06:35:21.5133333+00:00

@Varma Thanks for sharing the details. Let me check with internal teams on this issue and get back.

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Imaage daata disk issue in the Azure Scalesets