| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem of reduction of an access speed to copy source data when generating a large number of copies of a disk volume without stopping an application program. SOLUTION: The copy source data are duplicated into two disk volumes by a function of a disk array. When generating the copy, the duplication is interrupted, and an access to one disk volume is stopped. The data are copied to the plural copy source volumes in different devices or in the same disk array device from the volume by the function of the disk array. After the copying, the duplication is restarted, and contents of the two disk volumes are coincided. |
