Iaas in Cloud Computing: An Easy Beginner’s Guide In 5 Steps

Introduction to Iaas

Traditionally, we are all used to the complete IT infrastructure hosted on the premises of the customers’ data centers. However, with the advent of cloud computing, the infrastructure as a service, Iaas, is hosted on a public or private cloud service. Iaas in cloud computing is a basic service wherein service providers offer servers and storage to the user organizations as per the requirement. Iaas in cloud computing is fast catching up and increasingly attracting more big service providers into this field due to the increasing demand from businesses looking to reduce their investment in IT Infrastructure. Read on for a better understanding of the Iaas meaning, concepts, and about what is Iaas in cloud computing.

  1. Definition
  2. Benefits
  3. How to Implement Iaas
  4. Working of Iaas
  5. Advantages

1. Definition

Infrastructure as a service, Iaas in short, is defined as a cloud computing service that can be taken on rent or lease for cloud storage and hosted on public, private, or a hybrid cloud service. A simple Iaas definition can also be that Iaas is a form of cloud computing that provides virtualized computing resources over the internet.

2. Benefits

The benefits of the concept of cloud infrastructure as a service are immense. Having the necessary hardware on-premises towards owning the complete IT infrastructure in an organization involves a large investment. Alternatively, the required storage and computing services can be taken on rent or lease from a cloud computing infrastructure as a service, or Iaas provider which enables the use of its infrastructure for your needs.

This arrangement reduces your investment and initial capital expenditure enormously. Some of the popular Iaas examples are Amazon Web Services, Microsoft Azure, Cisco Metapod, IBM cloud service, and Google Compute Engine, GCE. Though the concept of Iaas started decades earlier, it can be said that the first big infrastructure of a Service example is Amazon Web Services which started in the year 2006. As of now, there are dozens of Iaas service providers across the world.

A few major Iaas benefits are as given below.

  • The companies with not so deep pockets can concentrate on their core business without bothering much about the IT infrastructure.
  • The initial capital investment on the computing and storage infrastructure and the required IT manpower for managing it reduced to a large extent. Iaas provides hardware, storage, servers, data center, and network hardware resulting in freeing the financial resources for investing in their core business activities.
  • Managing on the cloud network of a service provider would be a boon during disaster or outage as applications and data accessed without interruption or fear of loss.
  • Testing of new applications is easy and economical.
  • On-demand scalability is one of the advantages of Iaas in cloud computing which ensures that the users can scale up or down their requirements based on the business cycle. The need to invest in periodic upgrading of the IT infrastructure is also eliminated.
  • Flexibility is achieved as employees can easily access the data and applications offsite.

3. How to Implement Iaas

The implementation of the service is achieved on multiple platforms. It can be done on the public, private, community, or hybrid cloud services. There are now many big Infrastructure as a Service provider as this idea is fast catching up all over the world due to the enormous advantages of Iaas and its increasing affordability to business organizations.    

There are many things to consider before choosing the Iaas companies and implementing the system.  Some of the points to ponder over before deciding on moving to the Iaas cloud computing platform and choosing the Iaas provider are listed below.

  • A Reason– You must have a compelling business basis and purpose that makes you decide on moving to the Iaas bandwagon.
  • A strategy– Once you decide, you need to have a clear strategy on moving forward by thinking ahead regarding any potential disruptions to any part of the business operation.
  • An Estimate– You have to work out a proper estimate of the cost and savings due to the migration.
  • Testing– Once decided, run a test on a small part of the project to check its reliability and functioning to forestall any potential bottlenecks.
  • Full understanding– There should be full convergence and clarity between the provider and user regarding the requirements and terms of the agreement.
  • Information– Keep all relevant parties, from employees, vendors, clients, and investors, informed about the schedule.
  • Backup– Have multiple back-ups of all data before the switch over.

Detailed analyses of the multiple Infrastructure as a service, Iaas, providers concerning all relevant factors like their expertise, cost, experience, implementation, service, and other factors are to be done before finally choosing one vendor.

4. Working of Iaas

Saas, Paas, and Iass in cloud computing make up the three fundamental service delivery methods. Typically, an Iaas provider allows clients access to his infrastructure consisting of servers, storage, data center, networking, and computing over the internet as per clients’ requirements. The user organization can create an IT environment that suits his needs.

Usually, the services offered by an Iaas provider include other benefits like billing management, access management, IP address, storage, security, backup, network connections, and related items. The users have the flexibility to design their IT infrastructure as per their business requirements. The Iaas cloud provider services are charged on a pay-by-use method which gives flexibility to the users to scale up or down the service requirements based on the business volume and data storage.  

The Iaas architecture is the structural design of the computing network that delivers the computing resources through the cloud. The specific architecture for a business can vary depending on the requirements and goals of the client organization.   

5. Advantages

Business organizations can choose an Iaas platform that is easier and faster to implement. In general, it is very cost-effective as it is free of all hassles that come with buying, managing, and supporting the related infrastructure along with the related manpower. Some examples of Iaas in cloud computing relevance for clients are companies that have temporary, variable, or unexpected requirements.

For example, a company testing a major software application can do it on a cloud platform taken on hire. Since the incurred cost is billed on the pay per use basis on hourly, daily, weekly, or monthly billing, the decision regarding hiring or buying the infrastructure is based on cost-benefit analysis. Iaas can also be complemented with Paas and Saas depending on the requirement.  


In conclusion, it can be summed up that switching over to Iaas offers immense advantages to the business houses in many ways. But before deciding to switch over, a thorough analysis has to be made to evaluate the pros-and-cons of hitching to Iaas platform vis-a-vis having on-premises infrastructure from all aspects. The smaller and medium business houses may generally find this more convenient, while even big companies can switch some of their business segments to this platform to avail of the advantages. Iaas can also be complemented with Paas or/and Saas depending on the business needs, especially during an economic downturn or temporary expansion in requirement.   

If you are looking for an extensive course in Cloud Computing, then the 5.5-month online Postgraduate Certificate Program In Cloud Computing offered by Jigsaw Academy can be of help. This program helps interested learners become complete Cloud professionals. 

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