面向恢复的计算(ROC)认为：硬件故障、软件故障以及操作员错误仍需要人们面对，但不必作为一定要彻底解决的问题。
Recovery -oriented Calculation (ROC) takes the perspective that hardware faults, software bugs, and operator errors are facts to be coped with, not problems to be solved.
每个LPAR都可以用来运行通常在单独的计算机、高可用性集群或灾难恢复环境中运行的任何应用程序。
Each LPAR may be used to host any application that normally runs on a standalone machine, high availability cluster, or in a disaster recovery environment.
云计算是不是灾难恢复的一种可选方式？
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