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EC2 Instances Purchasing Options, - Coggle Diagram
EC2 Instances Purchasing Options
On Demand
Billing per second Linux or Windows, billing per hour for other OS
Use for short-term and un-interrupted workloads where you can't predict how the application will behave
Predictable pricing
Reserved Instances
Convertible Instances
Long workload with flexible instances
Period 1 up to 3 years
For steady-state usage applications (Think database)
Long workload
Saving Plans
Commit to a certain type of usage
10$/h for 1 or 3 years
Locked to a specific instance family & AWS region
Flexible across: Instance size, OS, Tenancy
Spot Instances
Not suitable for critical jobs or databases
The MOST cost-efficient instances in AWS
Useful for workloads that are resilient to failure: Batch jobs, data analysis, image processing, any distributed workloads
Short workloads, cheap, can lose instance (less reliable)
Dedicated hosts
A physical server with EC2 instance capacity fully dedicated to use
Address compliance requirements and use your existing server-bound software licenses
For companies that have strong regulatory or compliance needs
The most expensive option
Dedicated Instances
Instances run on hardware that's dedicated to you
May share hardware with other instances in same account
Capacity Reservations
No time commitment
Suitable for short-term, uninterrupted workloads that needs to be in a specific AZ
Charged at On-Demand rate whether you run instances or not