> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ale.run/llms.txt
> Use this file to discover all available pages before exploring further.

# Storage Configuration

> Guide for configuring AWS EFS or EBS as the default storage class.

***

## AWS EBS

<Warning>
  AWS EBS is only accessible from nodes located in the same Availability Zone (AZ) and does not support region-wide disks. If you need storage accessible across all AZs in a region, consider using the [AWS EFS file system](en/setup/eks-eksctl/02_aws-eks-cluster#install-aws-efs-csi-driver).
</Warning>

<Frame>
  <img className="block rounded-md" src="https://files.cloudtype.io/ale-docs/setup/eks/images/en/06_02.png" />
</Frame>

> In the operations system, select your cluster from the sidebar, then go to the **Settings** tab. Scroll down to the **Storage** section, input the following information, and click `Apply`:

* **Storage Class**: gp3
* **Volume Mode**
  * RWO (ReadWriteOnce): Single-node volume mount, single pod usage
  * RWX (ReadWriteMany): Not supported
* **Minimum/Maximum Size**: Enter in GB

<Note>
  AWS EBS only supports RWO access mode. To utilize RWX storage, consider using [AWS EFS](https://docs.aws.amazon.com/eks/latest/userguide/efs-csi.html), [Rook/Ceph](https://rook.io/docs/rook/latest-release/Storage-Configuration/Block-Storage-RBD/block-storage/#provision-storage), or other NFS solutions.
</Note>

<Info>
  AWS EBS currently offers two volume types: gp2 and gp3. It is recommended to use **gp3** as the default storage class due to its performance and cost benefits. For more details, refer to [this guide](https://docs.aws.amazon.com/ebs/latest/userguide/general-purpose.html).

  * **gp2**
    * Throughput: Up to 250MB/s, determined by volume size
    * Performance: Burst performance
  * **gp3**
    * Throughput: Up to 1,000MB/s, independent of volume size
    * Performance: Consistent performance
</Info>

## AWS EFS

<Frame>
  <img className="block rounded-md" src="https://files.cloudtype.io/ale-docs/setup/eks/images/en/06_01.png" />
</Frame>

> In the operations system, select your cluster from the sidebar, then go to the **Settings** tab. Scroll down to the **Storage** section, input the following information, and click `Apply`:

* **Storage Class**: efs-sc
* **Volume Mode**
  * RWO (ReadWriteOnce): Single-node volume mount, single pod usage
  * RWX (ReadWriteMany): Multi-node volume mount, multi-pod usage
* **Minimum/Maximum Size**: Enter in GB