Elastic Compute Service:Diagnosticar a integridade de instâncias do ECS

Create a diagnostic task

1. Log in to the ECS console.

2. In the navigation pane on the left, choose Maintenance & Monitoring > Troubleshooting.

3. In the upper-left corner of the top menu bar, select a region.

4. Select a time range and an instance ID, and then click Start.

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   Only one diagnostic task can run per instance at a time. The interval between two consecutive diagnoses must exceed 5 minutes.

   Problem type	Description
   Instance Performance Issues	Diagnose high CPU load, high memory usage, high bandwidth usage, high disk BPS or IOPS, or degraded performance.
   Instance Connection Errors or Startup Exceptions	Diagnose failed SSH or VNC remote connections, instance down, or OS startup failures.
   Network Issues	Diagnose degraded network performance or ping failures.
   Ineffective Instance Operation	Diagnose operations that did not take effect, such as an unapplied disk expansion.
   Insufficient Resource Quota	Diagnose quota-related issues, such as insufficient disk capacity quota, image quota, or exceeding the maximum number of elastic network interfaces (ENIs) or security groups.
   Check for Security Risks	Diagnose security risks such as system vulnerabilities, security alerts, or malicious processes.
   Instance Billing and Security Audit	Audit operations related to instance status, instance fees, and security groups. null This feature requires the service-linked role and permissions for self-service instance troubleshooting. See Service-linked role AliyunServiceRoleForECSSelfService.
   Instance Device Check	Check whether devices such as GPUs on an instance are running properly.
   Others	Enter the issue details, instance ID, and the corresponding troubleshooting epoch directly.

   Actual diagnostic items may vary. In the diagnostic report, click the tabs under Diagnostic Item Details to view the items and progress. You can monitor progress on the current page or close the dialog box and check the diagnostic task list later.

5. View the diagnostic report.

   The diagnostic report contains the following information:

   • Basic Information: Diagnosis time range, resource ID, report ID, and diagnosis time.

   • Diagnosis Result: If all checks pass, the result is No exceptions are detected on the instance. If abnormal items are found, specific items and recommended solutions are displayed.

   • Diagnostic Item Details: Results for each diagnostic item, with severity levels of Critical, Warning, and Passed.

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   With instance fee and security behavior audit, you can also obtain more information:

   • Query more audit information in the ActionTrail console.

   • Query billing information in Billing Details.

   Use the diagnostic report to resolve issues.

   • For common issues, see Common issues and solutions for the guest OS of an ECS instance.

   • For instance startup failures, log on to the ECS instance and use the attached repair disk to fix the issue.

View diagnostic history

Review the historical health status of an instance through its diagnostic history.

1. Log in to the ECS console.

2. View the instance's diagnostic history.

   1. In the navigation pane on the left, choose Maintenance & Monitoring > Troubleshooting.

   2. In the top navigation bar, select a region.

   3. On the Instance Troubleshooting tab, click View History.

   4. On the Check History page, click the Instance Health Diagnosis tab, enter a resource ID or report ID, and then click the icon.

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   In the diagnostic history report list, you can click the icon to the left of Actions and select a status to filter the list.

3. For a single diagnostic history entry, click View Report to view the detailed report, or click Re-diagnose to start a new diagnosis.