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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?
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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:

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 .

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Cool thanks, that's a well explanation. So when I add those drives during the provisioning of the box, they would not be EBS volumes? Also does 2x80SSD mean I can add up to 2 80G SSDs?
Correct. Those are not EBS volumes. and Yes, you can add 2 drives of 80G SSD type in this case. For what drives are support for a specific instance type, please refer: aws.amazon.com/ec2/instance-types/#instance-details

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