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How do you create an Azure VM with an Ultra Disk

Graeme Williams 1 Reputation point
2021-06-07T01:23:32.317+00:00

I'm trying to create an Azure VM (specifically a D8s_v3) with an "ultra disk" as the system disk. It's one of the choices in the dropdown for system disk, and my configuration passes the final validation check, but when I press "create" it fails with the error message: 

 UltraSSD_LRS sku is only supported for empty disks.

An "ultra disk" doesn't appear to be a choice for an added disk.

(This is in the Azure Portal, in case that matters.)

How do you include an "ultra disk" in an Azure VM?

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. shiva patpi 13,366 Reputation points Microsoft Employee Moderator
    2021-06-07T05:33:42.683+00:00

    Hello @Graeme Williams ,
    Thanks for your query !
    Ultra disks has got couple of limitations , one of the limitation - As of now Ultra Disks can only be used as a "Data disk" .
    Please check out the documentation and the limitations

    https://learn.microsoft.com/en-us/azure/virtual-machines/disks-enable-ultra-ssd?tabs=azure-portal

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