对于通常的事务性工作负载，从成员出故障到页面被恢复并可供另一个事务使用，通常只需20秒甚至更少的时间。
For typical transactional workloads, the time from the member failure until the time the pages are recovered and available to another transaction is typically 20 seconds or less.
我们需要测试性能、可靠性、稳定性，并需要取得最快的故障转移时间，其目标故障转移时间要少于60秒。
We wanted to test for performance, reliability, stability and the requirement to achieve the fastest failover time with a target failover time below 60 seconds.
当检测到故障时，RPR交换的机制能在不足50毫秒的时间内恢复网络。
When a failure is detected, the RPR switching mechanism restores networks in less than 50 millisec.
如果其他流量管理器在5秒钟内未看到一个流量管理器的心跳，则集群的其他部分将认为此流量管理器已经发生故障，并启动故障转移。
In the event that one traffic manager's heartbeats are not seen by the others for 5 seconds, the rest of the cluster assumes that it has failed and initiates a failover.
我们成功达到了此POC的目标，因为大多数情况下所测的故障转移时间约为60秒。
We succeeded in achieving the goal of this POC because the measured failover time was approximately 60 seconds in most cases.
应用程序故障转移大约需要45秒。
0秒二次回路中的水泵因为一个小故障而自动关闭。
0 SEC the pumps in the secondary loop shut down automatically, due to a slight malfunction.
若备用发电机组不能启动，应急发电机应在故障发生30秒后自动启动。
If the stand-by generator engine fails to start, the emergency generator is to be automatically started 30 seconds after the trouble happens.
对OSPF路由协议，这个时间至少为5秒，期间经过故障节点或链路的流量将会被丢弃，绝大多数的应用可以承受这种程度的延迟。
This time at least 5 seconds for OSPF routing protocol, during the fault the packet will be dropped, most of the applications can accept this level of delay.
李晓斌师傅指出：安全气囊指示在车辆启动6秒～8秒后依然闪烁或长亮不熄，就表示安全气囊出现故障；
Li Xiao Bin's teacher points out:The air bag indication starts 6 in the rolling stock~8 still gleam or grow behind bright anti extinguish, profess that the air bag appears fault;
到20秒之后，系统暂态过程结束，故障后阶段开始，这时系统较慢的变化过程值得注意。
After 10 to 20 seconds, when the transient period is over and the post-disturbance period starts, slower phenomena may require attention.
3天前，计算机在火箭发射前最后一秒发现发动机故障，发射被取消。
Three days earlier, a launch attempt was cancelled at the last second when a computer found a problem with the engine.
3天前，计算机在火箭发射前最后一秒发现发动机故障，发射被取消。
Three days earlier, a launch attempt was cancelled at the last second when a computer found a problem with the engine.
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