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If I buy a Standard Small EC2 instance, it comes with a 160GB. But does this 160GB drive is an EBS drive? Or simply storage for the OS...

And also am I charged for the IOPS on that 160GB drive?

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closed as too localized by MDMarra, MadHatter, Dave M, EEAA, Jonathan Rioux Nov 1 '12 at 6:40

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This seems like the sort of thing you should ask Amazon customer service. –  MDMarra Oct 31 '12 at 20:07
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I agree and I'm surprised at the number of questions lately that could be quickly and better answered by a phone call or email to the vendor. –  joeqwerty Oct 31 '12 at 20:08
    
Take it as a compliment, people would rather trust your opinion over that of a vendor. ...I can't entirely say I blame them, either. –  Sirex Nov 1 '12 at 0:37
    
@Sirex while this is true in most cases, billing isn't something that I want to hear about from a third party :) –  MDMarra Nov 1 '12 at 1:28
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1 Answer

A few things:

  • EBS-backed instances have a certain amount of ephemeral instance-local storage (160GB in your case).
  • IOPS charges are charged against EBS volumes, which means the Root volume for EBS-backed instances, plus any attached EBS volumes.
  • Instance-local storage is not EBS

Therefore, you will not be charged IOPS for ephemeral instance-local storage.

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