sourceDbClusterSnapshotIdentifier
The identifier of the cluster snapshot to copy. This parameter is not case sensitive.
Constraints:
Must specify a valid cluster snapshot in the available state.
If the source cluster snapshot is in the same Amazon Web Services Region as the copy, specify a valid snapshot identifier.
If the source cluster snapshot is in a different Amazon Web Services Region or owned by another Amazon Web Services account, specify the snapshot ARN.
Example: my-cluster-snapshot1