STORAGE DEVICE AND MEMORY CONTROL METHOD
PROBLEM TO BE SOLVED: To reduce operating time from abnormal power supply to completion of storage of necessary data. SOLUTION: In a storage device 6, a microprocessor 11, when detecting an abnormality of a power supply, writes at least a part (information on differences between a logical-physical c...
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| creator | TAKAHASHI YUZURU ABE MIKI FUKUMARU HIROAKI FUJIMATA YOSHIMI NAKAMURA HIROKI NAKANO YOSHIHIRO KASHIWABARA HIROSHIGE UMEHARA TAKASHI OBARA KATSUHIRO ICHIMURA MAMORU |
| description | PROBLEM TO BE SOLVED: To reduce operating time from abnormal power supply to completion of storage of necessary data. SOLUTION: In a storage device 6, a microprocessor 11, when detecting an abnormality of a power supply, writes at least a part (information on differences between a logical-physical conversion table 142 and a logical-physical conversion table 202) of management information stored in an SDRAM 14 as logical-physical conversion table difference information 152 in an MRAM 15 which is a nonvolatile memory enabling fast writes. When the SDRAM 14 is recovered afterwards, the management information stored in the SDRAM 14 is corrected as necessary using the management information written in the MRAM 15. COPYRIGHT: (C)2010,JPO&INPIT |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| title | STORAGE DEVICE AND MEMORY CONTROL METHOD |
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