Is composed of a client device such as a personal computer or a workstation, by a storage system comprising a control unit that manages a storage position and a storage device for storing data, a data access response system having a shortened latency for the access request from the client device there. And a control unit 2 which controls the storage location of the data stored in the cache apparatus 4 and the storage apparatus 3 to communicate with each other via the network 5, the storage apparatus 3, 4 cache device, and the client device 7, the controller 2 is, when receiving a request to access data for managing the storage location from the client device 7, a storage destination device performs transfer instruction to the destination device to which the data is stored, received the transfer instruction, stores the data I will reply to the client device 7 directly, a response message by adding the information of position.
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