MaintenanceTrackName: The name of the maintenance track.
MaxRecords: An integer value for the maximum number of maintenance tracks to return.
Marker: An optional parameter that specifies the starting point to return a set of response records. When the results of a describe_cluster_tracks request exceed the value specified in MaxRecords, Amazon Redshift returns a value in the Marker field of the response. You can retrieve the next set of response records by providing the returned marker value in the Marker parameter and retrying the request.