# Configuring AWS Elastic File System

> Source: https://parallelworks.com/docs/storage/configuring-nfs/aws-efs

The configuration parameters on this page are exclusive to AWS Elastic File System (EFS).

![Screenshot of configuration settings for AWS Elastic File System.](/content-images/docs/storage/configuring-NFS/aws-efs/blank-aws-efs.png)

#### Throughput Mode

Use this dropdown menu to select how much throughput will be available to your file system. AWS offers three throughput modes: `bursting`, `elastic`, and `provisioned`.

`Bursting` throughput scales with the amount of storage in your file system.

`Elastic` throughput (AWS recommended) is useful for spiky/unpredictable workloads, if your performance requirements are difficult to forecast, or when your application drives throughput at an average-to-peak ratio of 5% or less.

`Provisioned` throughput is useful when you know your workload's performance requirements, or when your application drives throughput at an average-to-peak ratio of 5% or more.

For more information, please see the [AWS documentation on throughput modes](https://docs.aws.amazon.com/efs/latest/ug/performance.html#throughput-modes).

#### Provisioned Throughput *

_*This parameter will only appear if you select `provisioned` for your **Throughput Mode**._

Use this field and slider to choose the speed of your provisioned throughput in mebibytes per second (MiB/s).