| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the occurrence of such a state that a part of data is not copied to another volume in OPC (Open Point Copy). <P>SOLUTION: A reception part 3a receives a command to update data A stored in a first volume 4a in data C. A copy processing part 3b, in response to the reception of the updating command of the reception part 3a, starts to copy the data A into a second volume 4b and restricts the start of the copy of the data A from the second volume 4b to a third volume 4c till the copy of the data A and B stored in the first volume 4a to the second volume 4b is completed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
