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Cloud Services (IaaS, PaaS, SaaS)

While the term “Cloud” has become fashionable there are a range of options available that qualify as cloud solutions. TechBrain can guide you through each alternative as well as presenting the alternatives of on-premise, co-location and hybrid cloud to ensure that you reach a decision armed with all the facts.

Here is a quick look at 3 cloud solutions:

 

Infrastructure as a Service (IaaS)

Infrastructure is located off-site at a data centre and is owned and maintained by a service provider. Hardware resources can either be dedicated or shared (multi-tenanted). There are multiple ways that that IaaS can be delivered:

  • Dedicated computer + dedicated storage (similar to co-location except hardware is effectively leased).
  • Dedicated computer + shared storage (allows for portability of Microsoft licenses and has the added benefit of flexible storage options).
  • Virtual data centre (all hardware is shared and a pool of resources is made available for the infrastructure and can be reconfigured on the fly).
  • Virtual machines (where a fixed amount of resources is delivered to each virtual server and is typically difficult to adjust.

 

Platform as a Service (PaaS)

PaaS is a cloud based solution that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure themselves. It is considered to be one step down from SaaS in the cloud computing stack. This is best suited to environments that develop their own software applications. Software as a Service (SaaS) SaaS is a hosted solution where you pay a fixed monthly fee to gain access to an application. The service provider takes care of everything else. An example is Microsoft Office 365 where a fixed monthly subscription delivers a full access email client with email hosted and fully managed by Microsoft.

 

Software as a Service (SaaS)

SaaS is a hosted solution where you pay a fixed monthly fee to gain access to an application. The service provider takes care of everything else. An example is Microsoft Office 365 where a fixed monthly subscription delivers a full access email client with email hosted and fully managed by Microsoft.

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