EFS

Question 1

How does storage capacity work in Amazon EFS?

Answer 1

With EFS, storage capacity is elastic, growing and shrinking automatically as you add and remove files, so your applications have the storage they need, when they need it.

Question 2

Does EFS support NFSv4 protocol?

Answer 2

Yes

Question 3

What is the pricing model for EFS?

Answer 3

You only pay for the storage you use (no pre-provisioning required)

Question 4

How high can EFS scale its storage?

Answer 4

Up to the Petabytes

Question 5

Can EFS support multiple concurrent NFS connections?

Answer 5

Yes, in fact up to thousands of them

Question 6

How does EFS ensure high availability and redundancy of data?

Answer 6

Data is stored across multiple AZs within a region

Question 7

What is the data consistency model for EFS?

Answer 7

EFS has Read after Write consistency

Question 8

Can EFS be used within multiple VPCs at the same time?

Answer 8

No

Question 9

In EFS, what is the difference and tradeoff between General Purpose Performance Mode vs. Max I/O Performance Modes

Answer 9

Max I/O Performance mode better handles tens+ applications going to the same EFS at the cost of slightly higher latency