File Share Snapshot Retention

For cloud-native snapshots, the backup appliance retains the number of latest restore points defined in backup scheduling settings as described in section Creating Azure Files Backup Policies.

During every successful backup session, the backup appliance creates a new restore point. If the backup appliance detects that the number of restore points in the snapshot chain exceeds the retention limit, it removes the earliest restore point from the chain. For more information on the snapshot deletion process, see Microsoft Docs.