EBS Volumes and IOPS

Question 1

What are the two variants of SSD

Answer 1

gp2 - General Purpose - Boot volumes

io1 - Provisioned IOPS - I/O intensives. NoSQL, RDB, low latency.

Question 2

What does IOPS stand for

Answer 2

Input/Output Operations per Second

Question 3

What does IOPS benchmark?

Answer 3

Performance for SSD

Question 4

What determines the number of IOPS for gp2 and io1 volumes?

Answer 4

Volume size

Question 5

What is the maximum IOPS for non-io1 volumes?

Answer 5

10,000 IOPS

Question 6

What is the minimum IOPS for non-io1 volumes?

Answer 6

100

Question 7

What is the maximum IOPS for io1 volumes?

Answer 7

32,000

Question 8

How is the number of IOPS determined for gp2 volumes?

Answer 8

3 IOPS/GB

Question 9

How is the number of IOPS determined for io1 volumes?

Answer 9

50 IOPS/GB

Question 10

What happens if you reach your IOPS limit?

Answer 10

1. I/O requests will begin to queue

2. Application response may degrade

Question 11

How large must your volume be to reach the maximum IOPS for non-provisioned IOPS

Answer 11

3,334GB

Question 12

If your volume is at 10,000 IOPS, and you need more, how can this be solved?

Answer 12

Change the storage class to provisioned IOPS (io1)

Question 13

If your volume is 500GB, and your I/O requests are beginning to queue, how should you resolve this issue in the least expensive way?

Answer 13

Increase your volume size