Failover can occur when a systems administrator instructs the nodes in the cluster to do so or when circumstances like a catastrophic application or server failure forces the resource groups to move.
发生故障转移的情况有两种：一是系统管理员指示集群中的节点执行故障转移；二是出现灾难性应用程序或服务器故障的情况迫使资源组转移。
If you're a software developer or a systems administrator, providing your application as a package makes installations, upgrades, and maintenance much easier.
如果您是一名软件开发人员或系统管理员，以包的形式提供应用程序可以使安装、升级和维护更加轻松。
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