Viewing the Overall Status of a DB Instance

On the Dashboard page, you can get knowledge of the overall status of your instance, including alarms, resource usages, and key performance metrics. DBA Assistant diagnoses instance health using operational data analytics and intelligent algorithms, and provides you with solutions and suggestions for handling detected exceptions.

Functions

Table 1 lists the functions provided by Dashboard.

**Table 1** Function description
Function	Description
Alarms	Shows alarms of different severities in the last 7 days. After you click the number next to an alarm severity, the Alarm Rules page is displayed, showing all alarm rules of the severity.
Resources	Shows the vCPU usage, memory usage, storage usage, and disk IOPS of your instance.
Key Performance Metrics	Shows vCPU utilization & slow query logs, connections, memory utilization, and disk reads/writes of your instance in the last hour.
Health	Shows the health status of your instance based on operational data analytics and intelligent algorithms.

Procedure

Log in to the management console.
Click in the upper left corner and select a region and a project.
Click in the upper left corner of the page and choose Databases > Relational Database Service.
On the Instances page, click the DB instance name.
In the navigation pane, choose DBA Assistant > Real-Time Diagnosis.
On the Dashboard page, view the status of your instance.
- In the Alarms area, view alarm information of your instance. To view alarm details, click the number next to an alarm severity.
  If attention needs to be paid to specific metrics such as CPU usage, storage space usage, and connection usage, you can create alarm rules and configure alarm policies for these metrics.
  
  For example, if you want to pay special attention to session traffic for new services, you can configure an alarm policy for connection usage by modifying the alarm rule of your instance. For details about how to modify an alarm rule, see Modifying an Alarm Rule.
  
  Figure 1 Alarms
- In the Health area, view the health diagnosis results of your instance.
  For example, if an exception is detected for Capacity bottleneck, click Diagnose to view the storage usage and disk space distribution, and scale up the storage or delete unnecessary data as required. For details, see Viewing Storage Usage.
  Figure 2 Health
- In the Resources area, view the resource usages of your instance.
  Figure 3 Resources
- In the Key Performance Metrics area, view the key performance metrics of your instance in the last hour.
  Figure 4 Key Performance Metrics