Viewing the Overall Status of an Instance

Dashboard shows the status of your instance, including alarms, resource usages, and key performance metrics. DAS diagnoses instance health using operational data analytics and intelligent algorithms, and provides you with solutions and suggestions for handling detected exceptions.

Function Modules

Table 1 lists the function modules of the Overview page.

**Table 1** Function description
Function	Description
Alarms	Shows alarms of different severities during instance running. After you click an alarm severity, the Alarm Rules page is displayed, showing all alarm rules of the severity.
Health	Diagnoses instance health using operational data analytics and intelligent algorithms.
Resources	Shows the CPU usage, memory usage, space usage, and disk IOPS of an instance.
Key Performance Metrics	Displays vCPU utilization & slow query logs, connections, memory utilization, and disk reads/writes in the last hour.

Procedure

Log in to the DAS console.
Click in the upper left corner and select a region and project.
Click in the upper left corner, and under Databases, click Data Admin Service.
In the navigation pane, choose Intelligent O&M > Instance List.

Alternatively, on the Overview page, click Go to Intelligent O&M.
In the upper right corner of the Instance List page, search for instances by engine type, instance name, or instance IP.

Figure 1 Searching for instances
Locate the box containing your target instance and click Details.
On the Dashboard page, view status of the instance.
- Alarms
  In the Alarms area, view alarm information of the current instance. To view alarm details, click the number next to an alarm severity.
  
  Figure 2 Viewing alarm information
  
  To view metrics such as CPU usage, disk usage, and connection usage, click Alarm Rules to configure metrics and alarm policies.
- Health
  In the Health area, view diagnosis results of the instance.
  
  Figure 3 Health
  
  For example, if the vCPU utilization is high, click Diagnose to view related performance metrics and optimize service-related SQL statements or upgrade CPU specifications as suggested.
  
  Figure 4 Viewing diagnosis details
- Resources
  In the Resources area, view the resource usage of the current instance.
  
  Figure 5 Viewing resource usage
- Key performance metrics
  In the Key Performance Metrics area, view key performance metrics in the last hour.
  
  Figure 6 Viewing key performance metrics