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。
Failback/fallback: This is the action of moving back resource groups to the nodes on which they were originally running after a failover has occurred.
故障恢复/回退：这是在故障转移发生后将资源组移回其最初在其上运行的原始节点的操作。
To fix the problem, make sure resource consumption stays at or below the threshold level and instance resource redundancy failover is working.
要解决这个问题，一定要保证资源消耗等于或小于临界值，并且采用了实例资源冗余故障恢复措施。
In a resource group we define all resources that should be attached to the DB2 UDB server that we want to failover.
在资源组中，我们定义了将挂到需要进行故障转移的DB 2UDB服务器的所有资源。
Thus, the system will either become inconsistent or simply stop until the failover (to only one data center) of some Shared resource.
因此，系统要么变得不一致，要么完全停止，直到对某些共享资源进行了故障转移(仅转移到一个数据中心)。
Failover mechanisms ensure operational continuity during events like impending hardware failures, resource stress, or prolonged latency delays.
故障恢复机制是为了在各种意外事件出现时仍能保证运营持续性，如即将发生的硬件错误、资源压力或较长延迟时间等。
Failover mechanisms ensure operational continuity during events like impending hardware failures, resource stress, or prolonged latency delays.
故障恢复机制是为了在各种意外事件出现时仍能保证运营持续性，如即将发生的硬件错误、资源压力或较长延迟时间等。
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