EC2 Instance Storage

Question 1

What is live configuration? Provide some examples of EBS volume attributes which can be modified during live configuration.

Answer 1

Live configuration changes allow changes to be applied to an EBS volume while it is in use/still attached to an EC2 instance.

Some attributes which can be modified include:
-volume size.
-IOPS capacity.
-volume type (gp1 -> gp2).

Question 2

Where is data stored on an EBS volume replicated in order to ensure data availability and integrity?

Answer 2

Data stored on an EBS volume will by default be replicated within the AZ where the EBS volume is created in case of hardware failure.