The document discusses HP's Dynamic Smart Cooling solution, which uses sensors to regulate temperature in specific datacenter areas and adapt to changing workloads. It cuts power costs by up to 40%. Optimizing airflow is also important, through practices like raised floors, alternating hot and cold aisles, and using water-based AC. The hot aisle/cold aisle configuration draws cool air in through perforated floor tiles in cold aisles and exhausts hot air out the rear of servers into hot aisles, with cooling placed at the end but not parallel to racks.