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Azure Managed Ultra Disk not showing when trying to attach to VM

Manny Hernandez 5 Reputation points
2024-06-07T21:10:24.26+00:00

Azure Managed Ultra Disk not showing when trying to attach to VM. the vm is Standard M128s on the attached dialog selection I cannot change the "Storage type" column it shows "Premium SSD LRS" to Ultra. the disk are already created and are on same Resource Group location and zone as the VM. I can see the ultra disk via the resource group. please advice.

tried
I waited for a couple of hours and also closed all my azure portal connections and try again. no change.

Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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Azure Disk Storage
Azure Disk Storage
A high-performance, durable block storage designed to be used with Azure Virtual Machines and Azure VMware Solution.
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  1. Manny Hernandez 5 Reputation points
    2024-06-07T22:03:48.1233333+00:00

    I have found the answers. only after trying to attach the disk via PowerShell script. I got the following error. "Update-AzVM : StorageAccountType UltraSSD_LRS can be used only when additionalCapabilities.ultraSSDEnabled is set." it seems that the person that built the VM did not enable the "additionalCapabilities" to support Ultra Disk. set on Portal Gui ->Home>VMName>Disk>Additional settings>Disk settings|Ultra disk|"Enable ultra disk compatibility" Radio Button "Yes"

    1 person found this answer helpful.
  2. kobulloc-MSFT 25,566 Reputation points Microsoft Employee
    2024-06-07T22:18:40.68+00:00

    Hello, @Manny Hernandez !

    I'm glad that you were able to resolve your issue and thank you again for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to "Accept " the answer.

    Issue:

    Azure Managed Ultra Disk not showing when trying to attach to VM. the vm is Standard M128s on the attached dialog selection I cannot change the "Storage type" column it shows "Premium SSD LRS" to Ultra. the disk are already created and are on same Resource Group location and zone as the VM. I can see the ultra disk via the resource group.

    Solution (from Manny Hernandez):

    I have found the answers. only after trying to attach the disk via PowerShell script. I got the following error. "Update-AzVM : StorageAccountType UltraSSD_LRS can be used only when additionalCapabilities.ultraSSDEnabled is set." it seems that the person that built the VM did not enable the "additionalCapabilities" to support Ultra Disk. set on Portal Gui ->Home>VMName>Disk>Additional settings>Disk settings|Ultra disk|"Enable ultra disk compatibility" Radio Button "Yes"

    If you have any other questions or are still running into more issues, please let me know. Thank you again for your time and patience throughout this issue.

    Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.

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