Patent ID: 7882136

Claim:
A storage system, comprising: a plurality of computers: a file server connected with the plurality of computers that includes a job management unit; a first storage device connected with the file server and having a first volume; a second storage device connected with the first storage device and having a second volume; and a management device connected with the file server, the first storage device and the second storage device, that includes an information collecting unit and an information analysis unit, wherein the job management unit manages jobs in the plurality of computers, the information collecting unit collects calculation-executing job information of the computers from the job management unit, the information analysis unit analyzes the collected calculating-executing job information, extracts a characteristic of files including a file size and a number of files to be inputted and outputted in accordance with the analyzed calculation-executing job information, and selects, if the extracted file size is larger than a predetermined value, volumes constituted by a magnetic disk device whose number is equal to or greater than a predetermined number of disks, and if the extracted number of files is larger than a predetermined value, volumes whose number is equal to or greater than a predetermined number of volumes, as the first volume storing files, the file server mounts the first volume as a first directory at a predetermined first timing, copies files in the second directory into the first directory, copies predetermined files in the first directory into the second directory at a predetermined second timing, and unmounts the first directory at the second timing.