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	To view alarm details, click the number next to an alarm severity.
Health	Shows the health status of your instance based on operational data analytics and intelligent algorithms.
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.

Alarms

Log in to the management console.
Click in the upper left corner and select a region.
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.
  You can customize alarm rules by adjusting alarm policies and severities for key metrics, such as CPU usage and disk usage. To view alarm details, click the number next to an alarm severity.
  
  Figure 1 Alarms
- In the Health area, view the health diagnosis results of your instance. To view the diagnosis results of long-running transactions, contact customer service to apply for required permissions.
  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