Windows Azure Cloud Service (37) talking about Cloud service

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　　Recently chatting with some customers, often encountered such a problem:

1. Question one: When I create a new Windows Azure virtual machine, I create a cloud service with the same name.

I see Microsoft's offer that virtual opportunity charges, cloud services will also be charged. In this case, do I use a virtual machine, is not charged my virtual machine + cloud service = twice times the cost?

2. Question two: When I use VS2013 to deploy an ASP. NET application to the Microsoft PAAs platform, there will only be a cloud Service, no virtual machine, why?

　　

Here, I have a simple answer to the above questions.

First, what is Cloud Service?

From my own understanding, Cloud service actually has two layers of meaning:

　　(1) The first layer means that for the IaaS platform, the Cloud service is the container (container) that holds the virtual machine. Such as:

　　

For example, the Cloud service is a container that can hold up to two virtual machines at a time.

When we create a new virtual machine, because there is no container to hold the virtual machine, Windows Azure creates a new cloud service by default, and then joins the virtual machine into the container.

Will Microsoft charge two of cloud Service + Virtual machine? This I have specifically verified that Microsoft will only charge Virtual machine fees. For example, Microsoft will charge only 2 virtual machine fees.

(2) The second layer means that for PAAs, the Cloud service is a multi-tiered Web application.

Users can define web Role on the front end to respond to client requests, and can define the worker Role on the backend to handle complex business logic.

Because the Azure PAAs platform uses web role and worker role, there is no virtual machine. Therefore, when using the PAAs platform, virtual machines are not created.

Assuming that a user has created 2 A2 Web Role and 2 A2 worker role on a virtual machine using the PAAs platform, that user will need to support the cost =2 * A2 price + 2 * A2 Unit Price =4 * A2 Unit Cost.

　

Windows Azure Cloud Service (37) talking about Cloud service