In the present-day competitive business environment, enterprises are using highly sophisticated and resource-intensive business applications. IT manager put best of his efforts and skill sets to optimize the investment and have better performance. The datacentres built have a variety of Operating System and Server architecture with a mix of switching environment.

With a mix of switching environment applied in datacentres, the management tools having limited scope generally struggle with managing and maintaining these fragmented devices.

Widespread use of virtualization technologies help to increase resource utilization and consolidate hardware resources in the datacentre, further increasing the complexity in management. Many of the IT departments often lack the funding and resources to support IT infrastructure.

Cloud infrastructure services are also known as Infrastructure as a Service (IaaS). IAAS can:

  • Access, monitor and manage remote datacentre infrastructures such as compute, storage and networking services.
  • Manage applications, data, runtime, middleware, and OSes.
  • Manage virtualization, servers, hard drives, storage, and networking.
  • Offer databases, messaging queues, and other services above the virtualization layer.
  • Install any required platform.

IAAS Examples : Amazon Web Services (AWS), Cisco Metapod, Microsoft Azure, Google Compute Engine (GCE), Joyent, etc.

  • PAAS is a datacentre OS.
  • PAAS can match various application components to the infrastructure, and it can also deploy and dynamically configure those components.
  • PAAS can even provide developers with tools to scale and update the application over time.
  • For experienced developers, PAAS approach is the most money-saving option.
  • Private PAAS gives enterprises the ability to deploy and host a PAAS within their IT infrastructure, allowing them to reap its benefits without the accessibility problems of public PAAS.
  • Flexible PAAS software technology can be deployed on any infrastructure.
  • Vendors offering PAAS software technology incude Apprenda that makes a flexible software stack for enterprises running Microsoft's .NET framework.
  • As with most cloud services, PAAS is built on top of virtualization technology.

Examples of PAAS providers include Heroku, Google App Engine, and Red Hat's OpenShift.

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