The demand for backup in preparation for data disappearance caused by a large-scale disaster, etc. is increasing greatly. For robust backup, geographically distributed backup to save data is indispensable. If the backup is distributed, then total loss of data after a catastrophe is unlikely. For this study, we assume that a user is a college student, and assume distributed backup among plural universities. Although such a user distribution backup is applicable at low cost, it entails some difficulties. We propose to resolve these problems using agent technology.
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