Why am I receiving the "maximum number of throughput mode changes or provisioned throughput value decreases" error when modifying the throughput mode on my EFS file system?

Resolution

In Provisioned Throughput mode, your EFS file system drives the level of throughput independent of the file system's size or burst credit balance based on a specified throughput level. For EFS file systems in Provisioned Throughput mode, you can increase the Provisioned Throughput value of the file system at any time with no restriction.

However, Amazon EFS restricts the following modifications to one change within a 24-hour period:

• Changing a file system's throughput mode. For example, changing from Provisioned Throughput to Bursting Throughput, or from Bursting Throughput to Provisioned Throughput.
• Reducing the amount of provisioned throughput in Provisioned Throughput mode.

If you attempt to change the preceding options more than once in a 24-hour period, you receive the maximum number of throughput mode changes error. Wait until the time indicated in the error message before trying to make the change.