Cognitive data center management

An apparatus for cognitive data center management is disclosed. A computer-implemented method and computer program product also perform the functions of the apparatus. According to an embodiment of the present invention, the apparatus includes a performance module that determines performance metrics over a predetermined time interval at a device coordinate in a three-dimensional ("3D") coordinate system for each replaceable device of a plurality of replaceable devices within a data center. The apparatus maps the performance metrics to environmental sensor measurements taken in the 3D coordinate system. The apparatus further includes an input analysis module that uses discovery analytics to determine a predicted time to failure for each replaceable device. The apparatus further includes a preventative action module that determines recommended actions to prevent failure of the replaceable devices and a tradeoff learning module that provides updated weighting factors based on changes to performance metrics in response to taking recommended actions.