Patent ID: 8321628
Filing Date: 2012-11-27
Classification: G06F

Abstract:
1. A storage system for storing data comprising: an interface processor for receiving a read or write request; a primary storage; a secondary storage; a storage control device for controlling the primary storage to temporarily store a write requested data when the write request is received by the interface processor and to temporarily store a read requested data read from the secondary storage in case that the requested data is not stored on the primary storage when the read request is received, and controlling the secondary storage to store the write requested data stored on the primary storage; and a temporary storage area for temporarily storing data for the primary storage in case that an access to the primary storage fails, wherein the storage control device including a controller for, in case that the access to the primary storage fails when the read request is received by the interface processor, determining whether the read requested data, is stored on the temporary storage area, controlling to read the read requested data from the temporary storage area when the read requested data is stored on the temporary storage area, and controlling to read the read requested data from the secondary storage when the requested data is not stored on the temporary storage area.