Ec2 On-Demand vs Reserved Pricing
Cloud, VPS, Grid - take your pick. AWS continues to offer new useful services (EBS, CloudFront, BootEBS). Yes, I’m a big fan.
I’ve crunched the numbers and have one year worth of pricing data (as of May 06 2010) for the small, large, and xlarge instance. Hopefully someone using EC2 services will find this helpful in planning their next steps. I didn’t include EC2 Spot instances because pricing on that type is not guaranteed.
The data used to generate these graphs can be downloaded here.
Interesting points
These are priced about the same.
240 days of small OD = 365 days of small R
240 days of large OD = 365 days of large R
240 days of xlarge OD = 365 days of xlarge R
On the 172 day of use, On-Demand pricing is about the same as Reserved Pricing.