Helper Appliances

Helper appliance is an auxiliary Linux-based VM instance. It is used to upload backed-up data to Google Compute Engine. Veeam Backup & Replication automatically deploys the helper appliance in Google Compute Engine only for the duration of the restore process and removes it immediately after that.

It is recommended to use the helper appliance when you recover from backups of Google Compute Engine virtual machines. In other cases, it is recommended to use restore without the helper appliance. For information on how to configure the helper appliance, see Configure Helper Appliance.

Requirements for Helper Appliance

When configuring a helper appliance, consider the following:

• If you want to restore from backups in an on-premises object storage repository and want to use the helper appliance, the helper appliance machine must have access to the source object storage repository. To provide access to object storage repositories, you can use VPN or Google Dedicated Interconnect. For more information, see the Google Cloud documentation.
• To upload one machine disk to Google Compute Engine, the helper appliance requires 1 GB RAM. Make sure that the type of Google Compute Engine instance selected for the helper appliance offers enough memory resources to upload all machine disks. Otherwise, the restore process may fail.

• The VPC route table must contain a route from the IP address of the Veeam Backup & Replication server to an active Google Cloud internet gateway. For more information on internet gateways and how to create route tables, see the Google Cloud documentation.
• Check that OS Login is disabled for the project where you plan to recover VM instances. For more information on how to configure OS Login, see the Google Cloud documentation. If you want to have OS Login enabled, use restore without the helper appliance.