Chp 7: Instance Storage

Question 1

What is an EBS Volume

Answer 1

• a network drive you can attach to your instance while it runs
• it allows your instance to persist data, even after termination

Question 2

How many instances can an EBS volume be mounted to?

Answer 2

one at a time

Question 3

EBS Volume can exist in any AZ?

Answer 3

no, its bound to one

Question 4

is there latency issues with EBS Volumes

Answer 4

yes, bc its a network drive

Question 5

by default, which EBS volume is deleted? what control it?

Answer 5

The root volume, this is controlled by AWS Cli

Question 6

what is an AZ instance store?

Answer 6

• a hardware disk
• lose storage once its stopped
• better I/O
• risk of data loss

Question 7

EBS Volume types

Answer 7

• gpg2/gp3 (SSD)
• IO1/IO2 (SSD)
• STI (HHD)
• SCI (HHD)

Question 8

Which EBS volume types can be used as boot volumes

Answer 8

gp2/gp3 and Io1/io2

Question 9

highest performance SSD volume for mission critical low latency or high-throughput workloads

Answer 9

Io1/io2

Question 10

lowest cost HDD volume designed for less frequently accessed workload

Answer 10

sc1