An apparatus, system, and method are disclosed for distributing data requests between data centers. A request module receives a data operation request from a client. The data operation request corresponds to mirrored data stored at a plurality of data centers. A metadata module maintains a set of data center cooling efficiency factors for each of the plurality of data centers. Each data center cooling efficiency factor comprises data relating to operational costs of a data center. A cost reduction module compares sets of data center cooling efficiency factors for each of the plurality of data centers to select the most efficient data center from the plurality of data centers. A response module sends the data operation request to the selected data center.