Unable to activate backup on VM after migration to ARM - UserErrorComputeVmWithClassicStorage

Fabio Meini 0 Reputation points
2023-08-15T11:17:02.58+00:00

Hello everyone,

After migrating a VM to ARM, I'm unable to activate backups for it anymore. The backup procedure was previously active and functional in the classic version.

The backup deployment fails with the following information:

{
    "status": "Failed",
    "error": {
        "code": "UserErrorComputeVmWithClassicStorage",
        "message": "Configuring backup failed due to unsupported VM configuration."
    }
}

Do you have any advice to offer? I already tried to activate the backup in differt vaults but it still fails for the same reason.

Thank you very much in advance,

Fabio

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An Azure backup service that provides built-in management at scale.
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  1. Ricardo Correia 165 Reputation points Microsoft Employee
    2023-08-17T09:22:35.29+00:00

    Hi Fabio,

    From the error seems like the disks are unmanaged and still on a classic storage account?

    If above is correct, you need to either migrate your storage account to ARM or migrate your disks to managed

    Hope this helped!

    RAC

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