How Restore to Amazon EC2 Works

In this article

    The workflow of the restore process depends on whether the proxy appliance is used or not. For more information on the proxy appliance, see Proxy Appliance.

    Note

    Mind the following:

    • If you added the Veeam Backup for AWS appliance to the Veeam Backup & Replication infrastructure and you plan to restore Amazon EC2 instances from restore points that were created using the appliance, you do not need to configure the proxy appliance. Also, restore to Amazon EC2 works as described in the Entire EC2 Instance Restore section in the Veeam Backup for AWS User Guide.
    • Amazon EC2 does not support GUID partition table (GPT) disks. That is why during restore, Veeam Backup & Replication converts GPT disks into Master Boot Record (MBR) disks.

    Restoring to Amazon EC2 with Proxy Appliance

    If a proxy appliance is required or you selected to use it for restore to Amazon EC2, Veeam Backup & Replication performs the following operations:

    1. Veeam Backup & Replication creates a proxy appliance in Amazon EC2.

    During the restore process, the proxy appliance communicates with backup infrastructure components over the SSH protocol and the network redirector that is deployed on the proxy appliance.

    1. For every disk of a backed-up workload, Veeam Backup & Replication creates an empty EBS volume in Amazon EC2.
    2. Veeam Backup & Replication hot-adds empty disks to the proxy appliance and restores backed-up data to the EBS volumes.
    3. Veeam Backup & Replication creates a target instance in Amazon EC2.
    4. Veeam Backup & Replication detaches the EBS volumes from the proxy appliance and attaches them to the target instance.
    5. After the restore process is complete, Veeam Backup & Replication removes the proxy appliance from Amazon EC2.

    Restoring to Amazon EC2 without Proxy Appliance

    If you selected not to use a proxy appliance for restore to Amazon EC2, Veeam Backup & Replication performs the following operations:

    1. Veeam Backup & Replication uploads disks of a backed-up workload to Amazon S3.

    In Amazon S3, the uploaded disks are stored to the temporary bucket in the RAW format.

    1. Veeam Backup & Replication imports the backed-up data from the temporary bucket in Amazon S3 to EBS volumes in Amazon EC2.
    2. Veeam Backup & Replication creates a target instance in Amazon EC2 and attaches the EBS volumes to it.
    3. After the import process is complete, Veeam Backup & Replication removes the temporary bucket from Amazon S3.