它很简单：DBA不需要再学习新的集群管理器命令来管理资源。

It is simple: The DBA does not need to learn a new set of cluster manager commands to manage resources.

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ha特性的另一个非常重要的优点是，它实现了集群管理器api。

Another very important benefit of the ha feature is that it implements the cluster manager API.

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clinfo进程提供用于在集群管理器和应用程序之间进行通信的API。

The clinfo process provides an API for communicating between cluster manager and your application.

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