backupSizeInBytes

The size, in bytes, of a backup (recovery point).

This value can render differently depending on the resource type as Backup pulls in data information from other Amazon Web Services services. For example, the value returned may show a value of 0, which may differ from the anticipated value.

The expected behavior for values by resource type are described as follows:

• Amazon Aurora, Amazon DocumentDB, and Amazon Neptune do not have this value populate from the operation GetBackupJobStatus.

• For Amazon DynamoDB with advanced features, this value refers to the size of the recovery point (backup).

• Amazon EC2 and Amazon EBS show volume size (provisioned storage) returned as part of this value. Amazon EBS does not return backup size information; snapshot size will have the same value as the original resource that was backed up.

• For Amazon EFS, this value refers to the delta bytes transferred during a backup.

• Amazon FSx does not populate this value from the operation GetBackupJobStatus for FSx file systems.

• An Amazon RDS instance will show as 0.

• For virtual machines running VMware, this value is passed to Backup through an asynchronous workflow, which can mean this displayed value can under-represent the actual backup size.