# EC2 Rightsizing | ZopNight

> An instance bills for its type, so capacity the workload never reaches is billed at the same rate as capacity it does. ZopNight finds it across AWS.

Source: https://zop.dev/zopnight/rules/ec2-rightsizing

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_Rightsizing · Medium severity_

## EC2 Rightsizing

An instance bills for its type, so capacity the workload never reaches is billed at the same rate as capacity it does.

- AWS — provider
- Medium — severity
- Savings — where it shows up
- Auto — fix, in one click

Free to start. No card. The playground just needs your work email.

## Found, explained, fixed.

Findings with a dollar figure attached, idle, oversized, orphaned, unscheduled and undiscounted spend.

- 01. Detect — ZopNight checks this automatically across AWS, with read-only access to the account.
- 02. Explain — Every finding says exactly what to change: Change EC2 instance type. Where the saving can be proven it is priced; where it cannot, the finding says so.
- 03. Fix — In one click, ZopNight stops it, resizes it to the recommended tier, and starts it again, then checks the change took. When someone other than an admin starts a pause or a delete, an admin approves it first.

- applies_to_fallback: Any resource in the account
- where_it_appears: The Savings tab of Recommendations, with every affected resource listed.

## Related

- [EC2 IMDSv2 Not Required](https://zop.dev/zopnight/rules/ec2-imdsv2-not-required)
- [GPU Instance Low Utilisation](https://zop.dev/zopnight/rules/gpu-instance-low-utilisation)
- [EC2 EBS Optimization Not Enabled](https://zop.dev/zopnight/rules/ec2-ebs-optimization-not-enabled)
- [EC2 Instance Has a Public IP: Review If Needed](https://zop.dev/zopnight/rules/ec2-instance-has-a-public-ip-review-if-needed)
- [EC2 Instance Not Managed by SSM](https://zop.dev/zopnight/rules/ec2-instance-not-managed-by-ssm)
- [EC2 RI Coverage Below 50%](https://zop.dev/zopnight/rules/ec2-ri-coverage-below-50)

## See the oversized resources in your account.

Connect a read-only role and the first pass runs on your own estate. This check, and the rest of the catalogue, with it.

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