# Reserved Instances

### Reserved Instances

• Up to 72% discount compared to On-demand 

• You reserve a specific instance attributes (Instance Type, Region, Tenancy, OS) 

• Reservation Period – 1 year (+discount) or 3 years (+++discount) 

• Payment Options – No Upfront (+), Partial Upfront (++), All Upfront (+++) 

• Reserved Instance’s Scope – Regional or Zonal (reserve capacity in an AZ) 

• Recommended for steady-state usage applications (think database) 

• You can buy and sell in the Reserved Instance Marketplace 

### Convertible Reserved Instance 

* Can change the EC2 instance type, instance family, OS, scope, and tenancy 
* Up to 66% discount

> **Note**
>
> The % discounts are different as AWS change them over time – the exact numbers are not needed for the exam. This is just for illustrative purposes