双机热备
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One example is taken in this article to explain the problem of double heat-computer backup on sever and the adjustment backup tactics.
本文从一实例出发，说明了服务器双机热备方案的问题及备份策略调整。
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The continuity and security of the database was achieved with the online backup of double computer.
双机热备实现数据库的连续性和安全性。
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