IaaS is one the highly sought after cloud computing model that enables user to acquire infrastructure from cloud provider who is responsible for its maintenance. There is variety of infrastructure that can be provided by service providers including servers, networking, or storage to name a few.

Brief Overview of IaaS

IaaS helps user obviate cost of purchasing costly equipment and pay only for the resources that are being used. Cloud hosting provider shoulders entire responsibility of maintaining equipment. The most significant aspect of IaaS is that the hardware as well as software are offered as virtualized services.

As far as the equipment is concerned, the responsibility of the maintenance and repairs lies with the IaaS service provider. This relieves the end user from hassles of looking after frequent servicing of equipment.

In the event of any technical glitches, the user needs to notify service provider. Many times the faults are resolved by remote operations and if the fault is of more serious nature, the provider undertakes to offer replacement as agreed in Service Level Agreement.


Following are some of the resources can be availed through SaaS service model:

- Bandwidth

- IP addresses

- Load balancers

- Firewalls

- Desktops

- Internet connectivity

- Virtual server space

Organizations need to adopt IaaS in order to acquire proficiency of managing virtualized products. This can help them significantly while adopting PaaS or Platform as a Service. It is projected that overall spending on IaaS based services is going to grow at the CAGR of 42 percent.

Key Advantages of IaaS

Pay-as-you-use this is probably the most attractive attribute of any cloud based service including IaaS. It is understood that at no point of time there can be a situation when almost every application is running. In traditional models of service, customers need to pay for services irrespective of the state of operation. However, with IaaS model you need to pay only for the resources being consumed.

Wide Array of Services- Users can avail a plethora of services that include hardware as well as software resources as listed earlier. They can use CPU cores, RAM, hard disk space, and network switches just to name a few. It is worth noting that the entire gamut of virtual resources that are provisioned as cloud service offerings can be used to build a standalone data center.

Assured Availability- IaaS can continue to support users even if a server ceases to function. This achieved by spreading out resources across multiple servers placed in diverse locations. Clients can be assured of resource availability even n the event of a server failure or total shutdown of a data center.

Remarkable Accessibility- IaaS allows users to access resource functionality from any location. In addition, it can be operated by more than a single user to help authorized users avail its services by using login credentials.

On Demand Scalability- Organizations can continue to expand and grow without being concerned about resource provisioning in a cloud environment. IaaS can be scaled up or scaled down to accommodate varying degrees of resource requirements of the organizations. In addition of scalability, cloud based services including IaaS are also regarded for flexibility and agility. 


IaaS Adoption Trends

There are multiple factors that are responsible for extensive adoption of Infrastructure as a Service (IaaS) BY Indian organizations. One of the reasons for popularity of IaaS is the overall industrial slowdown around 2007 that resulted in credit difficulties.

This prompted many organizations to explore new alternatives and the focus shifted to renting equipment that was a better option to outright purchasing. Commercial viability of IaaS model was seen as the best solution to the problems being faced by organization in terms of financial crunch.

As far as current adoption of IaaS in India is concerned, it can be safely stated that most of the small and medium sized organizations have embraced the new service model due to multiple advantages in addition to economic viability.

Indian economy is poised for a major boost with ambitious initiatives declared by the new government including ‘make in India’ and digital India’ programs. With more and more companies from abroad entering the manufacturing sector of India, the need to have better infrastructure is also being felt. This includes construction of roads, bridges, manufacturing facilities, storage infrastructure, airports, and lot more.

Yet another significant driving factor for IaaS adoption is cost optimization initiatives that are being implemented by organizations. IaaS model is not only able to reduce cost of IT infrastructure investment but is also helping organizations accelerate their business operations by providing unified resource.

IaaS is proving to be a highly functional resource for organizations that need to expand their footprint. There can be different views regarding cost of IaaS because individual users often tend to look at costs of the model. It should be understood that IaaS must be considered as a package that consists of hardware, software, support team, and so forth.

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