| 摘要 |
PROBLEM TO BE SOLVED: To maintain the consistency of plural data even when a fault is generated in the middle of writing the plural related data. SOLUTION: A first area stores the physical block numbers #00H-#03H of physical blocks for constituting a data area corresponding to respective logical block numbers %00H-%03H. Then, for instance, when the write of the data to the logical blocks %00H and %02H is requested, the data are respectively written to the physical blocks #04H and #05H for instance which are updating blocks for updating the data among the physical blocks for constituting the data area and the block numbers #04H and #05H of the physical blocks are stored in a second area corresponding to the respective logical blocks %00H and %02H. |
