| 摘要 |
PROBLEM TO BE SOLVED: To newly maintain a front-backup configuration at a remaining base at a time of a front base failure.SOLUTION: At a time of a front system failure, disaster recovery is performed for switching from a priority backup system to a front system and switching from an alternate backup system to the priority backup system. A replication processing progress of each backup system is controlled so as to immediately enable a back-up transfer from a new front system to a new priority backup system. Therefore, when a front system failure occurs, a new front-backup configuration can be applied between backup systems. |
