AWS EC2 instance creation

Question

I have two questions regarding EC2 and EBS.

1. Why do you need to create an EBS volume when creating an AMI ?
2. Why when I create an instance that is c3.2xlarge and comes with 2x80 SSD from my AMI why don't those two 80G SSDs appear in my machine?

Answer 1

Why do you need to create an EBS volume when creating an AMI ?

Not necessary. You can create EBS backed AMI as well as Instance stored Backed AMIs. Read below links:

• Creating an Amazon EBS-Backed Linux AMI
• Creating an Instance Store-Backed Linux AMI

If your requirement is something specific, then please elaborate.

Why when I create an instance that is c3.2xlarge and comes with 2x80 SSD from my AMI why don't those two 80G SSDs appear in my machine?

I just answered a similar question. Please find the explanation here on why you do not see the drives .