Rule: EC2 Instance EBS Optimization Enabled

Rule Description

Troubleshooting Steps

2. 1.
   Verify EC2 instance type: Ensure that you are using an EC2 instance type that supports EBS optimization. Not all instance types support this feature.
4. 2.
   Check instance launch settings: If the EBS optimization setting was not enabled during instance launch, you need to stop the instance, modify the launch configuration, and restart the instance for the changes to take effect.
6. 3.
   Review EC2 instance limits: Ensure that you have not reached any limits imposed by AWS for the instance type or any other resource limitations that may prevent you from enabling EBS optimization. Adjust the limits if necessary.

Necessary Codes

Step-by-Step Guide for Remediation

2. 1.
   Open the AWS Management Console and navigate to the EC2 service.
4. 2.
   Select the EC2 instance for which you want to enable EBS optimization.
6. 3.
   Click on the "Actions" button and choose "Instance Settings" from the dropdown menu.
8. 4.
   In the sub-menu, click on "Change Instance Type".
10. 5.
    In the "Change Instance Type" dialog box, select the current instance type and the same instance type with EBS optimization.
12. 6.
    Click on the "Apply" button to proceed with the changes.
14. 7.
    Review the changes and click on the "Confirm" button to apply the instance type change.
16. 8.
    Wait for the instance to stop and start automatically.
18. 9.
    Once the instance is running again, verify that EBS optimization is enabled by viewing the instance details.
20. 10.
    Alternatively, you can use the AWS CLI to modify the instance launch configuration and enable EBS optimization. The CLI command to modify the launch configuration is as follows:

aws ec2 modify-instance-attribute --instance-id <instance_id> --ebs-optimized

<instance_id>

2. 1.
   After making the necessary changes, monitor the performance of the EC2 instance to ensure that EBS optimization is improving the performance of attached EBS volumes.