Amazon Web Services
From Leo's Notes
This page was last edited on 13 September 2019, at 04:37.
Some notes on Amazon Web Services (AWS)
Pricing
There are 4 models for Amazon Elastic Compute (EC2):
- On-Demand Instances
- Pay per hour or per second
- Reserved
- Discounted up to 75% compared to On-Demand but must commit to a 1 or 3 year term
- Spot Instances
- Request spare computing capacity by making a bid and having it fulfilled when the price drops below your bid
- Dedicated Hosts
There are many different instance types. The 12 month free eligible type is t2.micro which comes with 1 vCPU, 1GB RAM, 15GB Outbound Bandwidth. The value of the t2.micro VM in US East (Ohio):
- $0.01 per hour * 720 hours/month ($7.20)
- $0.1 per GB/mo storage * 30 GB ($3)
- $0.09 per GB/mo bandwidth * 15 GB per month ($1.35 - $0.09 as 1st GB is free)
Prices for the t2 instances and EC2 in general can be found at:
CPU Credits
Burstable instances such as the t2 instances have CPU credits. VMs accumulate a certain amount of credit every hour, depending on the instance type and uses credits when consuming more CPU than some threshold.