Managing file system throughput - Amazon Elastic File System

Managing file system throughput

Elastic is the default throughput mode and is recommended for most use cases. With Elastic throughput, performance automatically scales up or down to meet the needs of your workload activity. If, however, you know the specific access patterns for your workloads (including throughput, latency, and storage needs), then you can choose to change the throughput mode.

Other throughput modes you can choose include:

  • Provisioned throughput – You specify a level of throughput that the file system can drive independent of the file system's size or burst credit balance.

  • Bursting throughput – Throughput scales with the amount of storage in your file system and supports bursting to higher levels for up to 12 hours per day.

For more information about Amazon EFS throughput modes, see Throughput modes.

Note

You can change the throughput mode and the provisioned throughput amount after the file system is available. Changing throughput mode does not cause application downtime. However, any time that you change the file system to Provisioned throughput or increase the provisioned throughput amount, you must wait at least 24 hours before you can change the throughput mode again or decrease the provisioned amount.

You can manage the file system throughput mode by using the Amazon EFS console, the AWS Command Line Interface (AWS CLI), and Amazon EFS API.

To manage file system throughput (console)

  1. Open the Amazon Elastic File System console at https://console.aws.amazon.com/efs/.

  2. In the left navigation pane, choose File systems to display the list of EFS file systems in your account.

  3. Choose the file system that you want to change the throughput mode for.

  4. On the file system details page, in the General section, choose Edit. The Edit page displays.

  5. Modify the Throughput mode setting.

    • To use Elastic throughput or Provisioned throughput, choose Enhanced, and then choose Elastic or Provisioned.

      If you choose Provisioned, then, in Provisioned Throughput (MiB/s), enter the amount of throughput to provision for file system requests. The amount of Maximum Read Throughput is displayed at three times the amount of the throughput that you enter. EFS file systems meter read requests at one-third the rate of other requests. After you enter the throughput, an estimate of the monthly cost for the file system is shown.

      Note

      You can change the throughput mode and the provisioned throughput amount after the file system is available. However, any time that you change the file system throughput to Provisioned or increase the provisioned throughput amount, you must wait at least 24 hours before you can change the throughput mode again or decrease the provisioned amount.

    • To use Bursting throughput, choose Bursting.

    For more information about choosing the correct throughput mode for your performance needs, see Throughput modes.

  6. Choose Save changes to implement your changes.

To manage file system throughput (CLI)