Azure VM Purchasing Options
- Pay as you go:
- In this model you would be paying for hourly usage
- No-Commitments
- Costliest Option for using VMs
- You will be charged only when your vm is running
- Reserved Instances:
- Azure Reservations helps us in saving costs up to 72% compared to pay as you go.
- This discount is offered when we can give a commitmnt to use a Azure VM for one year or three years
- We can pay the amount upfront or monthly (The total cost of up-front and monthly reservation is same)
- Azure Reservation is valid for Azure VM’s as well

- Virtual Machine Size flexibility with Reserved VM Instances:
- When we buy a Reserved VM Instance, We can choose to optimize for size flexibility or capacity
- Azure Reservation Cancellation: Refer Here
- Azure Spot Virtual Machines:
- Azure allows us to Create Azure Spot Virtual machines to take advantage of unused capacity.
- At any point when Azure needs capacity back, Azure Infrastructure will evict the Azure Spot Virtual machines
- So, Azure Spot VMs are great for workloads that can handle interruptions
- Azure Hybrid Benifit
- Linux: Refer Here
- Windows: Refer Here
