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.

Depending on the type of backups you are restoring from and their location, the helper appliance may be required or optional. The helper appliance is required when you restore from:

Backups of Google Compute Engine VM instances that are stored in external repositories.
Backups of virtual and physical machines that are stored in object storage repositories.

The helper appliance is optional when you restore from backups of virtual and physical machines stored in backup repositories, or backups of Google Compute Engine virtual machines copied to backup repositories with backup copy jobs. It is recommended, however, to use the helper appliance in scenarios where it is optional, as the helper appliance may significantly improve restore performance. You can specify the helper appliance settings at the Helper Appliance step of the Restore to Google Compute Engine wizard.