I have three (RHEL, Ubuntu and Windows 10) t2.micro free tier running instances, I have got notified by the Amazon that I am being charged for month of December, when I saw the summary, all the instances are under free tier limit, neither of them exceed the limit of 750 hrs, but still I am getting charged, Why?
I have also attached the snapshot
CodePudding user response：
You've used the monthly 750 hours across the RHEL instances (393 hours) and the first 357 hours of the other Linux instances. So the additional 387 hours you've used on top of that on other Linux instances this month are outside the free tier, and are being billed for.
The exact wording on the Free Tier page is:
750 hours per month of Linux, RHEL, or SLES t2.micro or t3.micro instance dependent on region
750 hours per month of Windows t2.micro or t3.micro instance dependent on region
I would interpret that to mean that you can have 750 hours of Linux, SLES, and RHEL instances (with 750 being the total, no matter how you split it), and 750 hours on Windows instances.
So I would assume that you can have 1500 hours per month total if you split evenly between Windows and Linux types. I should note though that this is my interpretation from the wording and is not guaranteed to be accurate.
To clarify for your comment, multiple instances having the same OS (including if one has RHEL, another has Other Linux as in your case) are considered a single unit in terms of billing.
CodePudding user response：
You might have used it for more than 12 months, its free for 1 year use only or 750 hrs