例如，可以在云中建立一个DB 2 HADR(高可用性灾难恢复)集群。

For example, a DB2 HADR (High Availability Disaster Recovery) cluster can be set up in the cloud.

youdao

通过使用备用模式(secondary mode)作为只读数据库，DB 2 HADR(高可用性灾难恢复)配置可以同时提供具有弹性的可用性和一些负载均衡。

DB2 HADR (High availability Disaster Recovery) configurations can provide both resiliency of availability and some load balancing through use of the secondary mode as a read-only database.

youdao

因为现在问题才算问对了，针对的是灾难恢复，而不是高可用性。

Because now the question is framed properly, which is for disaster recovery, not high availability.

youdao