This option is useful when a service USES DNS as a loadbalancingmechanism between servers or server clusters.
当服务使用DNS做为伺服器间或伺服器丛集间的负载平衡机制时，这个选项会很有用。
2
The technology of loadbalancing mainly provides best times of average response, the self-adapt to changes of load, and reliable loadbalancingmechanism.
负载均衡技术主要提供最短的平均任务响应时间、自适应变化的负载以及可靠的负载均衡机制。
3
You need to set up a cluster of servers for loadbalancing and test the failover mechanism (see Resources).