IaaS - Infrastructure as a Service

By Cronos Editorial Staff on Sep 13, 2022
Est. Reading: 7 minutes

What is IaaS (Infrastructure-as-a-Service)?

Infrastructure-as-a-Service, aka IaaS, is a cloud computing term. IaaS means to provide clients with basic ‘infrastructure’ with compute, network, and/or storage capabilities on-demand, through the internet, and generally on a pay-as-you-go model. IaaS allows end-users to scale resources as needed, avoiding the need for significant, upfront capital investments or needless “owned” equipment.

IaaS - Infrastructure-as-a-Service

IaaS is exceptional for applications with “spiky” workloads. Unlike PaaS (Platform as a Service) and SaaS (Software as a Service) and even newer computing models like containers and serverless, IaaS gives you the most control over your cloud resources.

In the early 2010s, IaaS became a popular computing model, and it has since become the standard abstraction model for a variety of workloads.

IaaS platform and architecture

IaaS is a set of real and virtualized resources that give customers all the building blocks to deploy cloud-based applications and workloads.


End-users can quickly provision compute resources on cloud provider platforms without worrying about the hardware of this instance. As long as you can define it for a cloud provider, you can get any kind of compute resources. For specific workloads, most vendors offer both CPUs and GPUs.

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Cloud computation is frequently accompanied by supporting services such as auto-scaling and load balancing, which give the high availability, scaling, and performance qualities that make the cloud so appealing.

Physical Data Centers

IaaS providers oversee enormous data centers located worldwide that house the real computers, servers, storage, security, and network devices.

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End users can then access these physical devices as virtual infrastructure. As the end-users, we do not engage directly with physical infrastructure in most IaaS models, and we simply use it as a service.


In cloud networking, traditional networking hardware such as routers and switches are made available programmatically, usually through APIs.

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The three basic types of cloud storage are block storage, file storage, and object storage. Block and file storage are prevalent in traditional data centers, but they struggle to cope with the cloud’s scale, performance, and dispersed nature.

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Object storage has thus become the most popular cloud storage format since it is highly distributed (and therefore resilient). It uses commodity hardware and allows data to be accessed easily over API endpoints. For end-users like us, object storage services have potentially infinite storage.

IaaS Use Cases

The flexibility and ease of the cloud allow IaaS resources to be highly scalable and robust. IaaS has a lot of applications:

Testing and Development

Your team will be able to quickly set up and disassemble test and development environments, helping you get new apps to market faster. IaaS enables developers and testers to swiftly and cost-effectively scale up and down their environments.


IaaS is the quickest and most cost-effective way to move an application or workload to the cloud. Without rebuilding your underlying architecture, you can improve the scaling capabilities and the overall performance and security of running an application or workload.

Storage, recovery, or Backup

Your company can avoid the cost of storage and the complexity of storage management, which usually necessitates hiring qualified personnel to handle data and meet legal and compliance requirements. IaaS storage helps deal with fluctuating demand and continuously increasing storage requirements. It can also make backup and recovery system planning and management more effortless.

High-Performance Computing

Supercomputers, computer grids, and computer clusters solve significant problems involving millions of variables or calculations. All of these can be available in a few clicks in the cloud. Just a few examples include protein folding and earthquake simulations, climate and weather predictions, financial modeling, and product design assessments.

Web Apps

IaaS provides all of the infrastructure required to run online apps, including storage, web and application servers, and networking devices. Your company can swiftly build web apps on IaaS resources and flexibly scale infrastructure up and down to meet the app’s requirements.

Difference Between IaaS(Infrastructure as a Service), PaaS(Platform as a service), and Saas(Software as a Service) concerning cloud technology:

IaaS PaaS SaaS
Network Architects use IaaS Developers Use PaaS End Users Use SaaS.
It is a service model that provides virtualized computer or storage resources over the internet. It includes tools for developing applications. It’s a type of cloud computing service in which the host software makes itself available to customers.
Technical knowledge is required. A little knowledge is needed to build the basic setup. Generally, little or no technical knowledge is necessary as the company handles everything.

IaaS vs. Serverless

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IaaS means that the cloud provider provides an actual infrastructure for our compute and storage requirements. This infrastructure is highly configurable. We can control security, networks, monitoring, and any other software on these machines.

Serverless is just the opposite. Serverless means that we can run our code without providing any infrastructure. This does not mean that the code is not running on a computer or using no storage. Cloud Providers simply abstract this detailed information from us. We have little control over the infrastructure on which our code runs.

Advantages of IaaS ????

Reduce costs

IaaS lowers the cost of establishing and maintaining a physical data center, making it a cost-effective cloud alternative. Pay-as-you-go subscription models are standard among IaaS providers, allowing you to save money on hardware and maintenance while letting your IT team focus on your core business. There are multiple pricing options and optimization techniques that can further help you save costs.

Scalability and performance

One of the main assets of IaaS is its scaling capability. You can scale applications internationally and accommodate resource demand spikes with IaaS. As a result, you’ll be able to swiftly launch new applications worldwide and increase application performance.

Stability, dependability, and supportability are all improved

IaaS eliminates the need for software and hardware maintenance and upgrades and dealing with equipment issues. With the required agreement in place, the service provider ensures that your infrastructure is reliable and meets service-level agreements (SLAs).

Enhances company continuity and recovery in the event of a disaster

Achieving high availability, business continuity, and disaster recovery can be costly as it requires a considerable investment in technology and personnel. IaaS, on the other hand, can help to lower this cost if the correct SLAs are in place. IaaS can recover way more quickly and efficiently than maintaining your physical server during a crisis or outage.


A cloud service provider can provide better security for your applications and data than you could do in-house with a suitable service agreement.

Allows you to innovate and deliver new apps to users more quickly

Once you’ve decided to launch a new product or program, you can receive the computing infrastructure you need in minutes or hours rather than days or weeks when you use IaaS. Because you don’t have to create the underlying infrastructure, you can deploy your apps to users faster with IaaS.

Disadvantages of IaaS ????

Security and compliance

Security is one of the most severe concerns in IaaS. A lot of IaaS suppliers are unable to provide complete security. It is also necessary to note that we may not be able to move many of our applications to IaaS for compliance requirements.

Maintenance and Upgrade

Although IaaS service providers maintain the software, some firms do not receive upgrades.

Interoperability issues

Clients may encounter vendor lock-in issues because it is difficult to transition VMs from one IaaS provider to another.

IaaS Providers


Vultr is a New York-based cloud computing firm. It provides internet-based computation, storage, and networking services. The company has data centers placed in 14 different cities around the world.

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This organization is ISO-certified, and all of its services adhere to the PCI Data Security Standard. Customers can also benefit from penetration testing, vulnerability assessments, and load balancers. The prices charged by Vultr are determined by the number of CPU cores in each virtual machine instance.


It’s a one-of-a-kind cloud hosting company that provides cloud computing services to businesses so they may scale by deploying DigitalOcean apps that operate together across several cloud servers without sacrificing speed!

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It was named the third largest cloud hosting firm in the world in terms of web-facing computers in January 2018.

DigitalOcean Infrastructure, situated in the United States, is a leading cloud service provider. Their headquarters are in New York City, and their data centers are located worldwide to deliver seamless cloud services to customers worldwide.


Kamatera is a term that has been around for more than 20 years in cloud-based services. They’ve been supplying cutting-edge technologies and excellent services since 1995. They are among the best cloud service providers globally, with outstanding services and over 20 years of experience.

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Whether you’re searching for web hosting, cloud firewalls, private networks, app development, or other products and services, they can help you. Not only that, but the best part about Kamatera is that its products and services are compatible with practically every operating system.


Linode is a cloud hosting company that focuses on offering Linux-powered virtual machines for various applications. Many experts think it is not beginner-friendly.

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Linode was regarded ahead of its time with virtualized hosting when it first launched in 2003. It has evolved into a global enterprise with 800,000 consumers in 196 countries. Linode server locations are optimized for serving a global audience in terms of latency reduction and user experience enhancement.

AWS (Amazon Web Services)

Amazon Web Services or AWS is the most popular cloud provider. It gives developers access to over 170 AWS services, which they can access from anywhere whenever they need them.

AWS has customers in over 190 countries, including 5000 educational institutions and 2000 government agencies. AWS is used by many firms, including ESPN, Adobe, Twitter, Netflix, Facebook, and the BBC.

Google Cloud Platform

Google Cloud is a collection of Google’s cloud computing services. It offers various services, including compute, storage, networking, Big Data, and others, hosted on the same infrastructure that Google utilizes for its services, such as Google Search and YouTube.

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Google’s server hasn’t gone down in years. As a result, multiple companies trust Google to host their applications.

Microsoft Azure

Microsoft Azure features over a hundred services to help you tackle your most challenging problems quickly. With Microsoft Azure, a company’s developers can iterate quickly and deploy code utilizing an end-to-end cloud development platform thanks to Azure’s agility and built-in Development Operations (DevOps).

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Developers can also debug faster and easier than ever before, whether you’re using Microsoft Azure’s Visual Studio Team Services or another open-source tool like Chef or Jenkins.


Although the IaaS cloud computing platform cannot wholly replace traditional hosting, it does provide additional unparalleled benefits.

For the most part, using an IaaS cloud computing platform might not eliminate the need for an in-house IT group. As IT personnel will be required to monitor and control the IaaS configuration. So, the IT wage expenditure may not be significantly decreased, but other IT expenses can be considerably reduced.

Breakdowns, security issues, outages, and other challenges in cloud computing can bring your business to a halt. Examine the financial and operational stability of the IaaS cloud computing platform provider before trusting them with your IT infrastructure. Ensure that data, hardware, network, and application failures are covered by SLAs (Service Level Agreements).

The IaaS cloud computing platform vendor can access your sensitive data. So, it is essential that you only work with reputed organizations.

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