岐阜市立女子短期大学研究紀要第58輯（平成21年3月）
抄録
Modelling and Analysis of an Asynchronous Replication System
Considering the Amount of Data Update
| 木村充位 | 今泉充啓† | 中川覃夫‡ |
| Mitsutaka Kimura | Mitsuhiro Imaizumi | Toshio Nakagawa |
| 愛知学泉大学† | 愛知工業大学‡ |
Abstract
This paper considers the problem of reliability in a server system with asynchronous replication considering the amount of data update. We have formulated a model of a server system with asynchronous replication that the server transmits the database content to a backup site after a constant time. In this paper, we formulate a stochastic model of a server system with asynchronous replication considering the amount of data update. That is, the server transmits the database content from a main site to a backup site after a constant number of updates. We derive the expected number of data replication and the expected number of data update until system down.
Key words ; Server System, Asynchronous Replication, Main Site, Backup Site, Disaster