当出现一个高可用性事件时，这个资源组将故障转移到辅助计算机上，从停止的地方继续进行处理。
When a high availability event occurs, this resource group will fail over to the secondary machine and continue processing where it left off.
这样将创建一组执行故障转移的脚本和另一组执行退回的脚本。
One set of scripts would be created to failover and another that would failback.
发生故障或者服务器从故障中恢复之后，它按需处理从一个系统到另一个的资源组的故障转移。
It handles the failing over of the resource groups from one system to the other as needed after a failure or after a coming back of a server from a failure.
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。
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.
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。
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.
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。
In a resource group we define all resources that should be attached to the DB2 UDB server that we want to failover.
DB 2包含一组内置集群服务，它使您能够为两个服务器建立高可用性集群，甚至自动化HADR解决方案的故障转移。
DB2 includes a set of built-in clustering services that give you the ability to cluster together two servers for high availability and even automate the fail-over of an HADR solution.
资源组（Resourcegroup）：这是一组需要从一台服务器进行故障转移至另一台的全部资源。
Resource group: This is a group of all resources that need to be failed over from one server to the other.
在这种模式下，多个Power ha节点都可以访问共享卷组，这会加快发生节点故障时的故障转移(磁盘接管)。
In this mode, the Shared volume groups are accessible by multiple PowerHA nodes, which results in faster failover (disk takeover) in the event of a node failure.
在这种模式下，多个Power ha节点都可以访问共享卷组，这会加快发生节点故障时的故障转移(磁盘接管)。
In this mode, the Shared volume groups are accessible by multiple PowerHA nodes, which results in faster failover (disk takeover) in the event of a node failure.
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