I was under the impression that I get charged for the provisioned IO whether I use it or not. Although I shutdown the EC2 instance and not use PIOPS, it still be charged.
The EBS pricing page says following:
For example, let’s say that you provision a 2000 GB and 1000 IOPS volume for 12 hours (43,200 seconds) in a 30 day month. In a region that charges $0.125 per GB-month, you would be charged $4.167 for the storage ($0.125 per GB-month * 2000 GB * 43,200 seconds / (86,400 seconds/day * 30 day-month)). In a region that charges $0.065 per provisioned IOPS-month for the first 32000 IOPS, you would be charged $1.083 for the IOPS that you provisioned ($0.065 per provisioned IOPS-month * 1000 IOPS provisioned * 43,200 seconds /(86,400 seconds /day * 30 day-month)).
What is meant by 12 hours in a month? I don't see a place to specify any provisioned hours in the console. What am I missing?