Storage apparatus
This invention provides a storage apparatus which can avoid a data lost even when a short-circuit fault occurs in a power source line which is not made redundant for a plurality of hard disk drives. In the storage apparatus, a storage control unit comprises a host interface control unit, a disk inte...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
18.05.2006
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| Subjects | |
| Online Access | Get full text |
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| Abstract | This invention provides a storage apparatus which can avoid a data lost even when a short-circuit fault occurs in a power source line which is not made redundant for a plurality of hard disk drives. In the storage apparatus, a storage control unit comprises a host interface control unit, a disk interface control unit, a cache memory, and a data transfer unit, and a storage unit includes poly switches provided for each of the power source lines to a plurality of hard disk drives and a power source line monitor circuit for monitoring the voltage of the power source line. When the voltage abnormality due to a voltage drop of the power source line is detected by the power source line monitor circuit, a data line connecting the disk interface control unit and the plurality of hard disk drives is cut off. |
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| AbstractList | This invention provides a storage apparatus which can avoid a data lost even when a short-circuit fault occurs in a power source line which is not made redundant for a plurality of hard disk drives. In the storage apparatus, a storage control unit comprises a host interface control unit, a disk interface control unit, a cache memory, and a data transfer unit, and a storage unit includes poly switches provided for each of the power source lines to a plurality of hard disk drives and a power source line monitor circuit for monitoring the voltage of the power source line. When the voltage abnormality due to a voltage drop of the power source line is detected by the power source line monitor circuit, a data line connecting the disk interface control unit and the plurality of hard disk drives is cut off. |
| Author | YAGI SATOSHI |
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| Snippet | This invention provides a storage apparatus which can avoid a data lost even when a short-circuit fault occurs in a power source line which is not made... |
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| SubjectTerms | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
| Title | Storage apparatus |
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