CloudMonitor is a monitoring service provided by Alibaba Cloud. It adds some basic monitoring metrics for ECS, including CPU usage, inbound network rate, outbound network rate, system disk IOPS, system disk BPS, inbound traffic, and outbound traffic.

You can query related monitoring metrics immediately after activating an instance without the help of any plug-in. You can also set alarm rules for the monitoring metrics. Notifications are sent by SMS or email when the alarm threshold is reached:


You can set an alarm for the outbound network rate to timely learn the bandwidth usage. For detailed setup of alarm rules, seeManage alarm rules