-2

I'm working on a project that involves running a lot of spot instances over a short period of time, then terminating the spot reservation and starting the instances with a different AMI. If I reserve 500 spot EBS-backed EC2 instances for a day and they all have 8GB hard drive, am I paying for 500 EBS-days or 500 EBS-months (multiplied by 8GB)? If the latter, will terminating the instances and asking for new ones mean that I'm paying for another 500 EBS-months even if I use the machines just for one day?

Improve this question

1 Answer 1

Reset to default
3

Neither, really. EBS bills by hours. https://aws.amazon.com/ebs/pricing/

Volume storage for General Purpose SSD (gp2) volumes is charged by the amount you provision in GB per month, prorated to the hour, until you release the storage.

Improve this answer
2
  • It sounds more like the former then - by "EBS-days" I meant "24x EBS-hours". Thanks for clarifying this, though.
    – d33tah
    Mar 13, 2017 at 18:03
  • @d33tah Yes, essentially, but if your systems kill an instance at 19:30 hours you'll only pay for the 20 you used. Enjoy!
    – ceejayoz
    Mar 13, 2017 at 18:05

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .