Cost optimization - Amazon Web Services Support
Idle Load BalancersUnassociated Elastic IP Addresses
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Cost optimization

You can use the following checks for the cost optimization category.

Idle Load Balancers

Description

Checks your ELB configuration for load balancers that are idle.

Any load balancer that is configured accrues charges. If a load balancer has no associated back-end instances, or if network traffic is severely limited, the load balancer is not being used effectively. This check currently only checks for Classic Load Balancer type within ELB service. It does not include other ELB types (Application Load Balancer, Network Load Balancer).

Note

This check reports the resources that are flagged by the criteria and the total number of resources evaluated, including OK resources. The resources table lists only the flagged resources.

Check ID

hjLMh88uM8

Alert Criteria

  • Yellow: A load balancer has no active back-end instances.

  • Yellow: A load balancer has no healthy back-end instances.

  • Yellow: A load balancer has had less than 100 requests per day for the last 7 days.

Recommended Action

If your load balancer has no active back-end instances, consider registering instances or deleting your load balancer. See Registering Your Amazon EC2 Instances with Your Load Balancer or Delete Your Load Balancer.

If your load balancer has no healthy back-end instances, see Troubleshooting Elastic Load Balancing: Health Check Configuration.

If your load balancer has had a low request count, consider deleting your load balancer. See Delete Your Load Balancer.

Additional Resources
Report columns

  • Region

  • Load Balancer Name

  • Reason

  • Estimated Monthly Savings

Unassociated Elastic IP Addresses

Description

Checks for Elastic IP addresses (EIPs) that are not associated with a running Amazon Elastic Compute Cloud (Amazon EC2) instance.

EIPs are static IP addresses designed for dynamic cloud computing. Unlike traditional static IP addresses, EIPs mask the failure of an instance or Availability Zone by remapping a public IP address to another instance in your account. A nominal charge is imposed for an EIP that is not associated with a running instance.

Note

This check reports the resources that are flagged by the criteria and the total number of resources evaluated, including OK resources. The resources table lists only the flagged resources.

Check ID

Z4AUBRNSmz

Alert Criteria

Yellow: An allocated Elastic IP address (EIP) is not associated with a running Amazon EC2 instance.

Recommended Action

Associate the EIP with a running active instance, or release the unassociated EIP. For more information, see Associating an Elastic IP Address with a Different Running Instance and Releasing an Elastic IP Address.

Additional Resources

Elastic IP Addresses

Report columns

  • Region

  • IP Address