Posted On: Jun 30, 2020
Amazon Elastic File System (Amazon EFS) file systems using the default bursting throughput mode now have a minimum throughput of 1 MiB/s. All EFS bursting mode file systems (regardless of size) can drive 100 MiB/s of throughput, and file systems with more than 1TiB of Standard class storage can drive 100 MiB/s per TB when burst credits are available. This change increases the minimum throughput from 50KiB/s per GiB of Standard class storage to a fixed minimum of 1 MiB/s for file systems with less than 20 GiB of Standard class storage, when burst credits are exhausted.
We recommend that you use AWS CloudWatch to monitor your burst credit balance. You can continue to configure Provisioned Throughput in situations where you need to instantly provision the throughput required for your applications independent of the amount of data stored in your file system.