Your organization is planning to use AWS for BigData analysis. Total data is expected to be 400
TB. They were planning to use 150 EC2 instances with EFS because of better performance needs for the analysis. They have reached out to you asking for recommendation on performance mode. What would you suggest?

Answer options:

A.Performance mode = General Purpose, AWS can handle performance with general purpose mode till 10s of EC2 instances.
B.Performance mode = General Purpose, provides low-latency access to EFS.
C.Performance mode = General Purpose, provides higher levels of aggregate throughput and operations per second.
D.Performance mode = Max I/O, provides higher levels of aggregate throughput and operations per second with a tradeoff of slightly higher latencies.

Answer: D
Max I/O Performance Mode
"File systems in the Max I/O mode can scale to higher levels of aggregate throughput and operations per second with a tradeoff of slightly higher latencies for file operations. Highly parallelized applications and workloads, such as big data analysis, media processing, and genomics analysis, can benefit from this mode".
For more information, Please check following AWS Docs:
https://docs.aws.amazon.com/efs/latest/ug/performance.html