当无线网络在灾难中发生故障时，老式手机显得至关重要。

Old-fashioned phones matter when wireless networks break down in disasters.

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通过将数据库的工作负载复制到单独的站点上，这些特性使服务在发生本地硬件故障或灾难性站点故障时不会中断。

By duplicating the workload of the database to a separate site, these features protect users from production downtime in the event of a local hardware failure or a catastrophic site failure.

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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.

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