灾难恢复和高可用性故障转移要求跨所有节点惟一地标识这些过程中涉及的资源。
Disaster recovery and high availability fail-overs require that resources involved in these processes be uniquely identified across all nodes.
在DB 2 UDB V8.2中，DB 2引入了两个新特性——灾难恢复(HADR)和自动客户机重路由功能，它们为客户提供了更多实现高可用性的选项。
In DB2 UDB V8.2, DB2 introduced two new features that further provide customers with options for implementing high availability, disaster recovery (HADR) and automatic client rerouting capabilities.
EWU标识符可以消除重复的值，这些重复的值会破坏和拖延灾难恢复、高可用性和虚拟化过程。
EWU identifiers are required to eliminate the occurrence of duplicate values that will interrupt and delay the processes of disaster recovery, high availability, and virtualization.
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