Comparing PaaS and IaaS

One of the most common questions I am asked when consulting or teaching Learning Tree’s Cloud Computing course is “What is the difference between Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). This is an excellent question that the cloud computing vendors do little to help clarify. Let’s consider IaaS first… As […]
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What I Would Change about Microsoft Windows Azure

In Microsoft Windows Azure programs are deployed as roles.  There are two types of roles, Web roles and Worker roles.  Web roles are used to create Web applications and to host Web services.  Worker roles are used for background processing. When a role is deployed its instance size must be specified.  A small instance gets […]
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This Cloud Thing is Out of Control

I’ve been talking to some colleagues about moving to the Windows Azure cloud, and I’ve heard three reasons why they are resisting it: security, losing control, and trust.  In an earlier post, I wrote about securing the cloud.  In this post I want to address, from my perspective, losing control and trust. I think “losing […]
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The Problem with Moving to the Cloud is Everything Works

I’ve had this customer for about 15 years and they are the perfect candidate to move to Windows Azure. They are a small business.  Most of the employees are either on the road or working remotely.  Other than the few office workers, everyone is already accessing the data online.  There’s no dedicated IT staff managing […]
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Private Clouds Should Not Be Ignored

With the publicity surrounding Cloud Computing it is easy to form the opinion that Cloud Computing means using Microsoft Azure, Google App Engine or Amazon EC2. These are public clouds that are shared by many organisations. Related to using a public cloud is the question of security. What often gets missed in these discussions is […]
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