The Big Idea
What if you could save big on servers without risking your website's speed?
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Why EC2 pricing models (on-demand, reserved, spot) in AWS? - Purpose & Use Cases
The Scenario
Imagine you run a small online store and need computer servers to handle your website traffic. You try to guess how many servers you need and pay for each one every hour manually. Sometimes you pay too much when traffic is low, and other times your site slows down because you don't have enough servers.
The Problem
Manually choosing and paying for servers hour by hour is slow and confusing. You might waste money paying for unused servers or lose customers when your site is too slow. It's hard to predict exactly how many servers you need, and changing plans takes time and effort.
The Solution
EC2 pricing models let you pick the best way to pay for servers based on your needs. On-demand lets you pay only when you use servers, reserved saves money if you commit long-term, and spot offers big discounts for flexible use. This makes managing costs and capacity easier and smarter.
Before vs After
✗ Before
Pay $0.10 per hour for each server, no discounts, no flexibility
✓ After
Use on-demand for flexibility, reserved for savings, spot for cheap spare capacity
What It Enables
You can run your applications reliably while saving money by choosing the right pricing model for your server needs.
Real Life Example
A startup uses on-demand servers during launch, switches to reserved servers for steady traffic, and uses spot servers for batch jobs to save costs.
Key Takeaways
Manual server payment is costly and inflexible.
EC2 pricing models offer flexible and cost-effective options.
Choosing the right model helps balance cost and performance.