An a method for simulating a data center is provided and a non-transitory computer-readable storage medium having recorded thereon a computer program for executing the method of simulating a data center. The method includes storing at least one hardware configuration file and at least one functional description file of a data center to be simulated in a configuration file application; generating a simulation program of the data center using the at least one hardware configuration file and the at least one functional description file by a data center storage evaluation framework (DCEF) application; and executing a flow-based simulation on the simulation program generated by the DCEF application by a simulator.