# AOSPERF03-BP03 Use storage types that provide higher IOPs and throughput baseline
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 Improve storage performance with higher baseline IOPs and throughput using more scalable and efficient volume types. 

 **Level of risk exposed if this best practice is not established:** Low 

 **Desired outcome:** Improved storage performance, with increased input and output operations Per second (IOPs) and higher throughput. 

 **Benefits of establishing this best practice:** 
+  **Improved baseline performance:** Using gp3 EBS volumes provide higher baseline performance compared to gp2 volumes. 
+  **Scalable high performance:** With gp3 volumes, you can provision higher performance independently of the volume size, allowing for more scalable and efficient performance in your OpenSearch Service domains. 

## Implementation guidance
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 gp3 is the successor to the general-purpose SSD gp2 volume, offering higher baseline performance and the capability to provision higher performance independent of volume size. 

### Implementation steps
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+  Log in to the AWS Management Console. 
+  Navigate to the Amazon OpenSearch Service console. 
+  For an existing domain, select the domain name and ch**oose Actions**, then **Edit cluster configuration**. 
+  Navigate to Number of data nodes box, and locate EBS volume type. 
+  Change the volume type from General Purpose (SSD) – gp2 to General Purpose (SSD) – gp3. 

## Resources
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+  [Making configuration changes in Amazon OpenSearch Service](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/managedomains-configuration-changes.html)