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Manageability and responsibility for Cloud Services

05 Sep

Many organizations are facing challenges when moving their IT services to the Public Cloud. For the sake of this post I focus solely on Microsoft Azure, although I am aware that other Cloud Providers have a similar approach and models for it…

As we’re all aware three categories of Cloud Services exist:

  • Infrastructure as a Service (IaaS);
  • Platform as a Service (PaaS);
  • Software as a Service (SaaS).

Each category have their own level of management, some elements are managed by the Cloud provider, the rest is managed by yourself. The amount of management differs from each category which is displayed by the picture below.

As you can see, SaaS services are completely managed by the Cloud provider which is great. A great approach to this is that if a Line of Business (LoB) application can be replaced by a SaaS alternative, then it really makes sense to do so. Looking at IaaS and PaaS, you can see the amount of management done by the Cloud provider is higher with PaaS than IaaS. This means the following recommendations can be made:

  • Replace/migrate existing applications tot SaaS services. This will release the IT department with the daily tasks of managing them;
  • Consider using PaaS Services as much as possible. This will also lower the administrative effort of managing cloud services by the IT department. Additonally, certain PaaS services allow developers to develop and deploy immediately to the PaaS service (ie. Azure Web App) making them not depend on an IT-Pro to facilitate the service.

However, less management doesn’t mean less responsibility. Despite having less management by using Cloud services, it doesn’t mean the organization is not responsible anymore. Microsoft released the required documentation regarding shared responsibility between the customer and themselves. This guide is available at http://aka.ms/sharedresponsibility From the guide took the following screenshot showing a diagram of the responsibilities.

 

As you can see, the customer still has some responsibility when using SaaS services. However, these models allow a customer to define a strategy when moving to the cloud…

 

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Posted by on 05/09/2018 in Azure, Public Cloud

 

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