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。
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。
Besides, confirming the scale of nonlinear load and locating it is also an important part of all maintenance, fault removal and repair schemes.
此外，确定非线性负载的规模和位置也是所有维护、故障排除和修理计划的重要组成部分之一。
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