Infrastructure as a Service (IaaS)

Infrastructure as a Service (IaaS) is also known as Hardware as a Service (Iaas). Cloud computing is the layer of one cloud platform. Customers allow them to outsource their IT infrastructures such as servers, programs, storage networking, processing, virtual machines, and other resources. These resources are accessed by customers on the Internet using a pay-as-per-use model.

Hosting services are traditional, IT infrastructure was rented for a specific period of time, with pre-determined hardware configuration. The client for paid the configuration and time, regardless of the actual use. With the help of the IaaS cloud computing platform layer, clients can dynamically scale the configuration to meet requirement changes and they are billed only for the services that are easily actually used.

Infrastructure as a Service (IaaS) is offered in three cloud models: public, private, and hybrid cloud (Iaas). The private cloud implies that the infrastructure resides at the customer's premise. The public cloud is located at the cloud computing platform vendor's data center while the hybrid cloud is a combination of the two models public and private model.

Infrastructure as a Service (IaaS)

How Does IaaS Work?

With Infrastructure as a service solution, the service provider's third party hosts the physical infrastructure including hardware, software, and storage usually in the physical data center. The infrastructure is deployed on multiple data centers. The IaaS provider handles services such as monitoring, security, data backup, and recovery.

Using a cloud interface or virtual interface, data can access computing resources to assemble and manage their own virtual data centers. Virtual components include network connections, virtual server space, and IP addresses.

IaaS provider provides the following services 

Compute: Computing Service is in includes virtual central processing units and virtual central memory for the Vms that is provisioned with the end-users.

Storage: IaaSis storage of the provider provides back-end storage for storing files.

Network: Network as a Service provides networking components such as switches, routers, and bridges for the Vms.

Load balancers: Load-balancing capabilities service are also provided at the infrastructure layer

Advantages of IaaS cloud computing layer

Some important advantages of the IaaS computing layer are as follows

Shared infrastructure

Allow (Iaas)multiple users to share the same physical infrastructure.

Web access to the resources

Iaas allows IT to users access resources all over the internet.

Pay-as-per-use model

It provides a Pay-as-per-use service which means users are required to pay for what they have used.

Focus on the core business

Iaas providers provide to focus on the organization's core business rather than on IT infrastructure.

Disadvantages of IaaS cloud computing layer


Iaas is one of the security is biggest issues in IaaS. Most of the (IaaS)providers are not able to provide 100% security.

Maintenance &Upgrade

Although (IaaS) service providers maintain the software, they do not do a software upgrade for some organizations.

Interoperability issues

It is very difficult to migrate VM from one IaaS provider to the other, also the customers might face problems connected to vendor lock-in.

Some important points about the IaaS cloud computing layer

IaaS cloud computing platform cannot replace the traditional hosting method, but it provides more than that we can each resource that is used are predictable as per the usage.

IaaS cloud computing platform may eliminate the need for an in-house IT department. It will be needed to monitor or control the ideas setup. IT salary expenses may not reduce, but other IT expenditures can be reduced.

Breakdowns at the Infrastructure as a Service (IaaS) cloud computing platform vendors can bring your business to a halting stage. Assess the ideas cloud computing platform vendor's stability and finances. Make that sure SLAs (i.e., Service Level Agreement) provide backups for data, hardware, network, and application failures.

Top Infrastructure as a Service (IaaS) Providers

IaaS Provider Key Features Details as a Service (IaaS) Providers

Amazon AWS

  • Comprehensive security capabilities
  • Rich controls, auditing
  • Hybrid IT architectures
  • Scalable
  • Works on Web Applications, Big Data & HPC
  • Backup and storage
  • Disaster recovery
Amazon Web Services becomes popular when it comes to cloud computing. It provides a wide range of storage services. Whether you are looking for computing power, storage, content delivery, or other service functionality, AWS beats when it comes to the IaaS cloud computing model.


  • Can deploy in seconds
  • SSD performance
  • Simple API
  • Highly available storage
  • Fast network
  • Pre-built open-source apps
This Cloud computing provider is designed for developers. Through tools it allows users to control virtual servers in the cloud.

Microsoft Azure

  • Ease of use
  • Administrative tool
  • Can be used as PaaS
  • Can be used on all operating system
It is Microsoft’s public cloud and known as Windows Azure. It provides a platform in which users can build, deploy and manage applications through the internet. It can be used on almost all operating systems such as Windows, Android and etc.

Rackspace Open Cloud

  • Public, private, hybrid, and multi-cloud
  • Easy-to-use control panel
  • Great customer service
  • Can create basic monitoring checks like ping or HTTP checks for an extra fee.
It provides cloud computing services to users for building scalable websites and applications.

Google Compute Engine

  • Google infrastructure backup
  • Scalable
  • High-performance
  • Low-cost, automatic discounts
  • Fast & efficient networking
  • Environmentally friendly global network
  • Flexible
It is a highly scalable and high-performance virtual machine that allows users to run large-scale workloads.

HP Enterprise Converged Infrastructure

  • Lower cost of ownership
  • Flexible
  • Pre-packaged Power of One
  • Smaller, faster and hyper-converged

HP Enterprise Converged Infrastructure is a cloud built on OpenStack and IaaS service is part of Converged Cloud Solutions for public, private, and hybrid clouds.

Green Cloud Technologies

  • Hosted backup
  • Disaster recovery
  • Virtual desktops
It is a service provider of cloud technology partners, private cloud providers, and IaaS providers.


  • Rich Management User Interface
  • Brand-able Self-Service User Interface
  • Secure AJAX Console Access
  • Powerful API
  • Dynamic Workload Management
  • Easy Template Creation Process
It is an open-source cloud software that was developed to create, deploy and manage infrastructure cloud services.


  • Good customer support
  • 99.9% uptime guaranteed
  • Backups, NodeBalancers, Longview, and Linode Managed
  • Powerful API
  • Deployment StackScript
Linode offers high-performance SSD Linux servers for infrastructure needs. It is good and easy to use for those just getting started with IaaS.