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What is Azure Resource Manager and Resource Group?

 

What is Azure Resource Manager & Resource Group?


Azure Resource Manager-

 Microsoft has designed a service for Deployment and Management of resource for azure. So it is the deployment and management service for azure. It provides a management layer which take actions like create, update and delete resource in your Azure Account as per request after authentication and authorization. It also provide some additional management feature like Locks, Tags and access Control.

 I have taken this definition from Microsoft Documentation.

 “Azure Resource Manager is the deployment and management service for Azure. It provides a management layer that enables you to create, update, and delete resources in your Azure account. You use management features, like access control, locks, and tags, to secure and organize your resources after deployment”

 To understand, Please see the Image.



Description-

Every Request which is raised from Azure tools, APIs or SDKs is received by Resource Manager. It authenticates and authorizes the request. It send the request to Azure service which takes action. Because all requests are handled through the same API, you see consistent results and capabilities in all the different tools.

 

Resource Group 

 It is a logical container of resources which have or share common life cycle.  Resource group has two type of move options for resources-

 1- Resource move to another resource group in same subscriptions

2- Resource move to another resource group which is in another subscriptions but both subscriptions will in same tenant.

3- Move to another region.

During Movement, Both the source group and the target group are locked during the move operation. Write and delete operations are blocked on the resource groups until the move completes.

 

Note-

 1.       Moving a resource only moves it to a new resource group or subscription. It doesn't change the location of the resource.

 2.       Moving can take Max 4 hours.4 hours are upper limit for this moving operation.

 3.       Max 800 resource can be moved in a single operation.

 4.       If a virtual machine that uses the virtual network has failed, the move is blocked. The move is blocked even when the virtual machine isn't one of the resources being moved and isn't in one of the resource groups for the move.

 5.       Movement is not supported by all types of resources

 Note-

·       All the resources in your resource group should share the same lifecycle. You deploy, update, and delete them together. If one resource, such as a server, needs to exist on a different deployment cycle it should be in another resource group.

·       Each resource can exist in only one resource group.

·       You can add or remove a resource to a resource group at any time.

·       You can move a resource from one resource group to another group 

·       Resource group has two type of locks. Read only and Delete 

·       Resource group has tagging options. 

·       Resource group has activity logs for tracking.

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