It’s one of the four types of cloud services, along with software as a service (SaaS), platform as a service (PaaS) and serverless.
IaaS quickly scales up and down with demand, only letting you pay for what you use. It helps you avoid the expense and complexity of buying and managing your own physical servers and other data centre infrastructure. Each resource is offered as a separate service component, and you only need to rent a particular one for as long as you need it.
Moving to cloud isn’t a matter of why, but a matter of when and how. Cloud promises speed, agility, and cost savings—but realizing the full value of cloud requires solving difficult challenges such as data gravity, security, compliance with regulations, cost management, and the need for organizational change. We can help your business navigate cloud complexities and speed your digital transformation through a proven methodology for transforming people, processes, and technology.
The research states that “cloud services can initially be more expensive than running on-premises data centers. [However, it also proves that] cloud services can become cost-effective over time if organizations learn to use and operate them more efficiently.” The statement is backed by an example of workload migration for 2,500 virtual machines from an on-premises data center to Amazon Web Services EC2. The example TCO (shown in Figure 1) shows an initial uptake in cloud costs and a steady decline as soon as organizations learn how to apply cost optimization best practices (as described in this other framework). The chart also shows how on-premises costs may have a long tail as organizations take time to actually shut down their data centers.
Why hybrid cloud?
Apps that can easily move to the cloud already have. Meanwhile, two out of every three apps remain on-premises due to issues such as data gravity, sovereignty, compliance, cost, and interdependencies with other systems. This leaves enterprises caught in the middle of old and new, struggling to reach their transformation goals within a complex dual IT operating environment.
Finding the right mix of cloud for your apps and data can be challenging, but navigating organizational challenges surrounding cloud adoption can be just as difficult as dealing with legacy infrastructure. We’ll help you align your organization to build a cloud-ready culture and embrace agile methodologies.
Quickly scale up and down resources according to application demand.
IaaS allows enterprises to focus more on core business activities instead of IT/computing infrastructure.
Cloud service in different locations allows access to applications and data during a disaster or outage.