Move Managed Disks between Resource Groups and Subscriptions
It is not supported to move VMs with Managed Disks between Resource Groups or Subscriptions. This is currently available in the commercial cloud: https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-move-resources#virtual-machines-limitations , but we don't have this provider available in Azure Government. If we need to move a VM with a managed disk, we must snapshot the managed disk, copy that over, and recreate the VM in the new Resource Group or subscription. This incurs unnecessary downtime.