Infrastructure as a Service (IaaS) is a business model that delivers IT infrastructure like compute, storage, and network resources on a pay-as-you-go basis over the internet. The service provider hosts, maintains, and updates the backend infrastructure, such as compute, storage, networking, and virtualization.

IaaS eliminates the need for enterprises to procure, configure, or manage infrastructure themselves, and they only pay for what they use IaaS helps eliminate much of the complexity and costs associated with building and maintaining physical infrastructure in an on-premises data center.  

You can access IaaS resources using a pay-as-you-go basis, allowing you to only pay to consume the resources that you need. In other words, you can easily increase or decrease resources, allowing you to pay less when needed or instantly provision and scale out resources to meet new demand.

The Subscriber has to manage everything else including the operating system, middleware, applications, and keeping your data secure.

IaaS providers also offer additional services, such as detailed billing management, logging, monitoring, storage resiliency, and security.

What are the benefits of IaaS?

Use cases of IaaS?

security and compliance responsibilities shared under the IaaS model?