EC2 Snapshot Retention
For cloud-native snapshots and snapshot replicas, Veeam Backup for AWS retains the number of latest restore points defined in backup scheduling settings.
During every successful backup session, Veeam Backup for AWS creates a new restore point. If Veeam Backup for AWS detects that the number of restore points in the snapshot chain exceeds the retention limit, the earliest restore point is removed from the chain. However, some restore points can be retained longer than the period specified in the retention policy settings. For more information, see CBT Impact on Snapshot Retention. For more information on the snapshot deletion process, see AWS Documentation.
Veeam Backup for AWS does not apply retention policy to cloud-native snapshots created manually. For details on how to remove them, see Removing EC2 Backups and Snapshots.