If you are planning to run this routine in a production environment, consider running it during a maintenance window or when the system is under a light load.
若计划在一个生产环境内运行此例程，可以考虑在维护窗口期间或是当系统处于轻负载的情况下运行它。
2
If a cell needs to be removed for maintenance or an upgrade, the load balancer can be directed to send traffic to just the cell that is running.
如果由于维护或者升级的原因需要移除一个单元，负载均衡器可以把流量直接发送到正在运行的那个单元。
3
Besides, confirming the scale of nonlinear load and locating it is also an important part of all maintenance, fault removal and repair schemes.