| 摘要 |
<p>PROBLEM TO BE SOLVED: To quickly restore a response performance relative to a read-write command of a storage device when a trouble of a path for transmitting the read-write command is removed.SOLUTION: When detecting an occurrence of a trouble in a command path 11 on the basis of detection information of a detection section, a countermeasure section 5 of a storage device 1 including a plurality of types of physical disks with different features, acquires, as trouble occurrence time information, type information of a physical disk 7 storing data of a logical disk 10 corresponding to the command path 11 where the trouble occurs. Further, when detecting restoration of the command path 11, the countermeasure section 5 moves the data of the logical disk 10 corresponding to the restored command path 11 to a type of the physical disk 7 in which the data are stored at the occurrence of the trouble.</p> |
