Convert an existing disk to an ultra-disk?

HitenBhavsar-MSFT 381 Reputation points Microsoft Employee
2020-05-08T12:45:37.567+00:00

Can I convert an existing disk to an ultra disk?

[Note: As we migrate from MSDN, this question has been posted by an Azure Cloud Engineer as a frequently asked question.]

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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. Sumarigo-MSFT 45,491 Reputation points Microsoft Employee
    2020-05-14T12:39:06.723+00:00

    No, but you can migrate the data from an existing disk to an ultra disk. To migrate an existing disk to an ultra Disk, attach both disks to the same VM, and copy the disk's data from one disk to the other or leverage a 3rd party solution for data migration.

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  1. Leon Laude 85,726 Reputation points
    2020-05-11T12:14:27.75+00:00

    Hi,

    Based on my understanding you cannot convert an existing disk to an ultra-disk, ultra disks can only be created as empty disks.

    For more information, check the GA scope and limitations over here:
    https://learn.microsoft.com/en-us/azure/virtual-machines/windows/disks-enable-ultra-ssd#ga-scope-and-limitations

    (Please don't forget to mark helpful replies as answer)

    Best regards,
    Leon

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