> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/appsec-rules/iac-security/storage/appsec-aws-135.md).

# EC2 EBS is not optimized misconfiguration detected in code

## Rule Details

|                        |                                    |
| ---------------------- | ---------------------------------- |
| Cortex AppSec Rule ID  | APPSEC\_AWS\_135                   |
| Category - Subcategory | Storage - Redundancy               |
| Provider               | AWS                                |
| Severity               | LOW                                |
| Framework              | Ansible, Terraform, Terraform Plan |

## Impact

Ensuring that EC2 instances are EBS-optimized will help to deliver enhanced performance for EBS workloads. They provide dedicated throughput to Amazon Elastic Block Store (EBS) volumes, which can result in improved EBS performance. Additionally, EBS-optimized instances use a separate network connection for EBS traffic, which can reduce network latency and improve the performance of EBS-intensive workloads.

## How to Fix

In this example, `ebs_optimized` is set to `true` that helps improve performance and latency.

* name: Example

## \[source,go]

amazon.aws.ec2\_instance: name: my\_ec2\_instance image\_id: ami-123456 instance\_type: t2.micro

* ebs\_optimized: true

***


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