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Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

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Re: Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

#2
Cool tool. One suggestion, in the dropdown where you list the types of instances, can you append the abbreviations that AWS uses (e.g. M1-small, M2-medium, M3-large). I'm sure I'm not alone in referring to instances by those codes rather than their full names, which I seem to always forget.

Re: Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

#3
I like the idea, it's just a bit difficult to use for what I'm getting out of it. Simple things like making clear what the "number of days" slider means (it didn't take long to figure it out, but I had to use the context to draw my conclusion). I'm used to seeing my instances in the typical "t1.micro, m1.small, m1.medium, etc" format, so I was a bit thrown off by the "Instance Category" dropdown.

It would also be nice to have values on the x axis of the graph so I can see exactly when certain thresholds are crossed - as of right now I'm just assuming that the max x-value is my specified days * 24.

Again, cool idea, but I'd be more inclined to hit up the AWS Cost Calculator (http://calculator.s3.amazonaws.com/calc5.html). It's ugly, but it allows me to quickly add many resources from all of the AWS services for a total monthly cost.

Re: Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

#5
I'm not sure how these calculations are correct - I have eu-west-1 set up, and the price for 1yr heavy reserved is fixed. But the AWS pricing still has an hourly rate against it. The final cost looks right, but the initial cost (eg., taking out the reservation but never running the instance) should just be the setup cost I think?

Re: Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

#7

I'm not sure how these calculations are correct - I have eu-west-1 set up, and the price for 1yr heavy reserved is fixed. But the AWS pricing still has an hourly rate against it. The final cost looks right, but the initial cost (eg., taking out the reservation but never running the instance) should just be the setup cost I think?

When you reserve an instance, it doesn't entirely eliminate the hourly cost to run it. What you are essentially doing is paying a large chunk up-front in exchange for a heavily discounted hourly rate, which ends up saving you money by the end of your 1 - 3 year contract.

Re: Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

#8

Cool tool. One suggestion, in the dropdown where you list the types of instances, can you append the abbreviations that AWS uses (e.g. M1-small, M2-medium, M3-large). I'm sure I'm not alone in referring to instances by those codes rather than their full names, which I seem to always forget.

Thanks for the feedback, doing it. Will upload the new version in 20 min or so.

Edit : changes pushed.

Re: Show HN: AWS EC2 On-demand vs. Reserved Interactive Price Comparison

#9
post #7

I'm not sure how these calculations are correct - I have eu-west-1 set up, and the price for 1yr heavy reserved is fixed. But the AWS pricing still has an hourly rate against it. The final cost looks right, but the initial cost (eg., taking out the reservation but never running the instance) should just be the setup cost I think?

When you reserve an instance, it doesn't entirely eliminate the hourly cost to run it. What you are essentially doing is paying a large chunk up-front in exchange for a heavily discounted hourly rate, which ends up saving you money by the end of your 1 - 3 year contract.

Isn't that what I'm saying? That the cost should increase, albeit at a much more gradual rate, from the start of the term to the end?
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