实现故障转移机制、业务连续性和灾难恢复计划。
Implementing plans for failover mechanisms, business continuity, and disaster recovery.
同步可用性保证主系统和辅助系统上的数据源是一致的，完整的数据连续性是在故障转移之后维护的。
Synchronous availability guarantees that the data sources on primary and secondary systems are identical, and complete data continuity is maintained after a failover.
对于需要提供业务连续性的应用程序来说，故障转移是一个理想选择。
Failover is ideal for applications that must be continuously available for business continuity.
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