Abstract: Execution servers including a first execution server store data output by executing jobs to storage devices including semiconductor memory elements. A management server holds input/output information including identifiers identifying pieces of data, identifiers identifying execution servers which output the pieces of data, and identifiers identifying execution servers to execute jobs which receive the pieces of data. The first execution server sends a destination request including identifiers identifying the first execution server and a first piece of data to the management server. The management server determines an execution server to execute a job which receives the first piece of data to be a destination execution server of the first piece of data based on the input/output information and the received destination request, and outputs a transfer instruction for transferring the first piece of data from the storage device holding the first piece of data to the determined destination execution server.