Migrating Azure VM from unmanaged to managed disk

SafiyullahSA 65 Reputation points


I am attempting to migrate my Azure VM from unmanaged disk to managed disk and am wondering what steps I should take for a potential backout plan if the migration fails. Additionally, I am unsure how to restore an unmanaged VM from Azure Native Backup, as there is no clear documentation on the process. Should I follow the same procedure as I would for a managed disk backup or are there specific steps to follow?

I have already reviewed this document (https://learn.microsoft.com/en-us/azure/virtual-machines/windows/convert-unmanaged-to-managed-disks) and encountered a few obstacles that need remediation. These include:

  1. Available SKU Quota on Subscription in AE region - Quota is available
  2. Reversibility of migration - Migration is not reversible
  3. DNS entries are custom
  4. Ip address allocation - Static allocation
  5. VM has a static public IP address
  6. Reviewing VM Extensions agent - MDE Extension is in a failed state.
  7. The VM is not part of any availability zone or set.


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  1. Marcin Policht 13,175 Reputation points MVP

    Follow https://learn.microsoft.com/en-us/azure/virtual-machines/page-blobs-backup-and-disaster-recovery

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