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HitenBhavsar-MSFT avatar image
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HitenBhavsar-MSFT asked SumanthMarigowda-MSFT edited

Convert an existing disk to an ultra-disk?

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
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SumanthMarigowda-MSFT avatar image
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SumanthMarigowda-MSFT answered SumanthMarigowda-MSFT edited

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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LeonLaude avatar image
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LeonLaude answered

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://docs.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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