A method for improving a global lifespan of a storage system of a computing system is provided. The method includes: providing a prediction engine associated with the storage system including at least one storage device, the prediction engine being initiated at an installation time of the at least one storage device; automatically determining lifespan values of the at least one storage device to assign the global lifespan of the storage system, the global lifespan being dependent on the installation time of the at least one storage device; replacing, responsive to a time-based failure event, a storage device of the at least one storage device; and subsequently monitoring, using the prediction engine, the global lifespan of the storage system based on the time-based failure event to define, at least in part, an optimized lifespan of the storage system.