A machine learning application processes thousands of small files concurrently from an Amazon EFS file system. The application is experiencing high latency. The solutions architect notices that the EFS Burst Credits are frequently exhausted. Which TWO actions should be taken to improve performance? (Select TWO.)

Answer options:

Change the EFS throughput mode to Provisioned Throughput.

Change the EFS performance mode to Max I/O.

Migrate the data to Amazon EBS.

Enable EFS Lifecycle Management.

Increase the size of the EC2 instances.

How to approach this question

Identify EFS performance bottlenecks: Burst credits (fix with Provisioned Throughput) and concurrent access (fix with Max I/O).

Full Answer

If an EFS file system runs out of burst credits, you should switch from Bursting Throughput to Provisioned Throughput. For workloads with tens, hundreds, or thousands of EC2 instances accessing the file system concurrently, Max I/O performance mode is recommended.

Common mistakes

Thinking increasing EC2 size will fix a network file system credit exhaustion issue.

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