NOC可以收到系统故障报警或者在Nagios web界面上看到一个闪亮的红色错误指示灯。
The NOC can be alerted of system failures or see a shiny red error light on the Nagios Web interface.
甚至在单个物理服务器上，您都有冗余电源、错误纠正ram、冗余磁盘和丰富的故障前诊断指示器监控。
Even on a single physical server, you can have redundant power supplies, error-correcting RAM, redundant disks, and copious monitoring of pre-fault indicators.
错误边界事件用来指示任务或子流程的故障。
An error boundary event can be used to indicate a fault on a task or a subprocess.
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