Comments on: Amazon Web Services Launches “Reserved Instances” — Basically a Pre-Paid Model

By: Amazon Lowers Prices for Amazon EC2 Reserved Instances | HTMLCenter Web Development Blog

Thu, 20 Aug 2009 16:12:50 +0000

[...] Web Services division has announced a new pricing model for EC2 reserved instances today. The reserved instances offering launched earlier this year and is basically a pre-paid option for the EC2 service. Amazon [...]

By: Darren

Darren — Wed, 30 Nov -0001 00:00:00 +0000

hours in a year: 8760

pricing for small instance

spend for a year at 0.10: $870

spend for a year at 0.03: $262.8

cost per year for reserved (1 year): 587.8

cost per year for reserved 3 year (year 1): $765.8

cost per year for reserved 3 year (year 2): $262.8

cost per year for reserved 3 year (year 3): $262.8

total cost for 3 years for reserved 3 year: $1291.4

average cost per year for reserved 3 year: $322.85

monthly:

reserve over 3 years the monthly cost would be: $35.87

reserve over 1 year the monthly cost would be: $48.98

with no reserve the monthly cost would be: $72.50

in short over 3 years it saves you around 50% of the price which is pretty good.

one thing that is not clear is what happends if they drop the price.

By: Darren

Darren — Wed, 30 Nov -0001 00:00:00 +0000

opps my average cost for 3 year is wrong should be $430.46 not $322.85

By: centernetworks

centernetworks — Wed, 30 Nov -0001 00:00:00 +0000

yea see you uk'ers are already awake and got the math brain going :)

thanks darren!

if they drop the price i am betting you get zero back - you are hedging your bets today.