Elastic File System

Question 1

What is EFS?

Answer 1

EFS is a file storage service for EC2 instances that has an elastic storage capacity, up to Petabytes, so there is no need to modify EC2 instance volumes to add more storage and you only pay for what you use. EFS is stored across multiple AZ’s and has Read After Write consistency.

Question 2

True or False: More than 1 EC2 instance can use the same EFS volume.

Answer 2

True; it can support thousand of concurrent NFS (Network File System) connections.

Question 3

What is Amazon FSx for Windows?

Answer 3

It is a native Windows file system so you can easily move Windows based applications that require file storage to AWS.

Question 4

What is Amazon FSx for Lustre?

Answer 4

It is a file system that is optimized for compute intensive workloads, such as HPC and Machine Learning.

Question 5

What is a use case for Windows FSx over EFS or Lustre?

Answer 5

Used when centralized storage is needed for Windows based applications or things that require SMB storage.

Question 6

What is a use case for Lustre FSx over EFS or Windows?

Answer 6

Used when high speed, high capacity distributed storage is required. For things like High Performance Computing and Machine Learning. It can also store data directly on S3.

Question 7

What is a use case for EFS over Windows FSx or Lustre FSx?

Answer 7

Used when distributed, highly resilient storage for linux instances and linux based applications is needed.