Information processing system
First Claim
1. An information processing device connectable to a first storage unit, a second storage unit and a data migration log area, the first storage unit including a readable and writable first memory, the second storage unit including a readable and writable second memory, the information processing device comprising a control unit configured to execute:
- first processing for determining a storage status of the first storage unit based on reliability information acquired from the first storage unit;
second processing for, when the storage status of the first storage unit is recognized as a protected state by the first processing, executing write on only the second storage unit of the first and second storage units, executing read on one of the first and second storage units based on an address recorded in the data migration log area;
third processing for recording an address of data written in the second storage unit in the data migration log area according to the write by the second processing; and
fourth processing for, when the storage status of the first storage unit is not recognized as the protected state by the first processing, executing read data from the first storage unit without reading from the data migration log area.
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Accused Products
Abstract
According to an embodiment, when a storage status of a first storage unit is recognized as a protected state, a control unit writes data to a second storage unit. When a read target address is recorded in a data migration log area, the control unit reads data from the second storage unit. When the read target address is not recorded in the data migration log area, the control unit reads data from the first storage unit.
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Citations
20 Claims
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1. An information processing device connectable to a first storage unit, a second storage unit and a data migration log area, the first storage unit including a readable and writable first memory, the second storage unit including a readable and writable second memory, the information processing device comprising a control unit configured to execute:
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first processing for determining a storage status of the first storage unit based on reliability information acquired from the first storage unit; second processing for, when the storage status of the first storage unit is recognized as a protected state by the first processing, executing write on only the second storage unit of the first and second storage units, executing read on one of the first and second storage units based on an address recorded in the data migration log area; third processing for recording an address of data written in the second storage unit in the data migration log area according to the write by the second processing; and fourth processing for, when the storage status of the first storage unit is not recognized as the protected state by the first processing, executing read data from the first storage unit without reading from the data migration log area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification