| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable preventive replacement of a disk device at most suitable timing in a disk array system.SOLUTION: A disk array system according to the present invention includes control means for controlling a disk array device configured from a plurality of disk devices, and threshold value preservation means for preserving a threshold value that is set on the basis of the reference value of an error rate for disk device replacement and a correction value set for each disk device, the control means detecting the error rate of each of the desk devices and detecting whether the error rate exceeds the threshold value.</p> |
