应用程序的多个实例(在生产中，每个应用程序会在单独的系统加以实现，并且在灾难恢复配置的单个系统中加以组合。)
Multiple instances of an application (Each application is implemented on a separate system in production and are combined on a single system in the disaster recovery provisioning.)
这些单独的原则并不是新的，但是现在作为单个内聚的单元来公开。
These individual principles are not new, but are now exposed as one cohesive unit.
此外，现在可以对单独的应用程序甚至单个资源进行故障转移，而以前的故障转移单位是整个队列管理器。
In addition, it is now possible to failover individual applications or even single resources, whereas previously the unit of failover was an entire queue manager.
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