STORAGE CONTROL DEVICE FOR DETECTING MISCALCULATION OF WRITE POSITION TO DISK, STORAGE SYSTEM, AND ACCESS METHOD
PROBLEM TO BE SOLVED: To provide a storage control device for maintaining reliability by preventing the position miscalculation of data due to the erroneous conversion of a temporary logical address and physical address due to soft error or the like. SOLUTION: A storage system includes a storage dev...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a storage control device for maintaining reliability by preventing the position miscalculation of data due to the erroneous conversion of a temporary logical address and physical address due to soft error or the like. SOLUTION: A storage system includes a storage device and a storage control device, and the storage control device includes: a data read instruction means 25 for, when receiving a write instruction from a host, transmitting a read instruction including a logical address included in the write instruction from the host to the storage device; and an address conversion information correction means 27 for, when a logical address is included in the data of the pertinent position read by the storage device based on a read instruction from the data read instruction means 25, and the logical address included in the write instruction received from the host is different from a logical address included in the read data, reading the address conversion information from a system region, and for writing the read address conversion information in the memory. COPYRIGHT: (C)2011,JPO&INPIT |
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