Veeam Backup & Replication 10
User Guide for VMware vSphere
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Before You Begin

Before you restore a machine to Microsoft Azure, mind the following prerequisites and limitations.

Prerequisites

  • You must configure the following objects in Microsoft Azure beforehand:
    • Storage account whose resources you plan to use to store disks of the restored machine.
    • Networks to which you plan to connect the restored machine.

For storage accounts and network configuration, you must use the same deployment model that you plan to use for machine restore.

  • [For restore of Linux machines] You must configure a helper appliance in the location to which you plan to restore a machine. For more information, see Configuring Helper Appliances.
  • [For speeding up the restore] If you plan to restore machines to a distant location, you can configure Azure proxies through which machine disks will be transported to blob storage. For more information, see Configuring Microsoft Azure Proxies.

[For speeding up restore from Capacity Tier] It is strongly recommended to use Azure proxy when you restore from backups residing on a Capacity Tier. For more information, see Configuring Microsoft Azure Proxies.

  • You must create a backup of the machine that you want to restore in Microsoft Azure. For the list of supported backups, see Restore to Microsoft Azure.
  • You must set up correct time on the backup server. Otherwise you may not be able to add a Microsoft Azure account to Veeam Backup & Replication, or the restore process may fail.

Limitations

  • Veeam Backup & Replication supports restore to Microsoft Azure for the following machines:
    • Microsoft Windows machines running Windows Server 2008/Windows Vista and later
    • Linux machines (see the Supported Distributions & Versions section in Microsoft Docs).
  • Mind the following limitations of disk sizes for Azure VMs and Azure stack VMs:
  • [Azure VMs] Veeam Backup & Replication supports the managed and unmanaged VM disk types for restored VMs:
  • Unmanaged VM disks: The maximum size for unmanaged virtual machine disks for Azure VM is 4095 GB. For details, see Microsoft Docs. When you restore a VM to Azure, VM disks can increase in size because of conversion. Thus, Veeam Backup & Replication does not allow to restore unmanaged disks larger than 4093 GB.
  • Managed VM disks: At the release date of Veeam Backup & Replication 10, the maximum supported size for managed virtual machine disks for Azure VM is 8190 GB. For details, see Microsoft Docs.
  • [Azure Stack VMs] At the release date of Veeam Backup & Replication 10, the maximum size for unmanaged virtual machine disks for Azure Stack VM is 1023 GB.

When you restore a VM to Azure Stack, VM disks increase in size because of conversion. Thus, Veeam Backup & Replication does not allow to restore disks larger than 1021 GB. You can regulate the maximum size of VM disks by creating the AzureStackMaxDiskSizeGB registry key as shown above for the Azure VMs.

  • If the system disk of an initial machine uses the GPT partitioning scheme, the number of partitions on the disk cannot exceed 4. During restore such disk will be converted to a disk with the MBR partitioning scheme.
  • The restore to Microsoft Azure functionality does not support the Azure Hybrid Use Benefit program.
  • [For restore from backups created with Veeam Agent for Microsoft Windows] Machines from a backup that contains a failover cluster are restored as separate VMs, not as a cluster. Shared cluster disks of these VMs are restored as regular disks
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