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Microsoft Dynamics AX 2012 R2 Services by Kenny Saelen, Klaas Deforche

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Putting high availability into practice

In the next sections, we will begin with the simplest architecture and point out the flaws in the design. Gradually, we'll solve them until we have a robust high availability design.

The basic architecture

First, let's take a look at the following diagram, which represents the most basic Microsoft Dynamics AX 2012 design. There is a single AOS instance and the AOS connects to a single SQL Server instance, as shown in the following figure:

The basic architecture

It goes without saying that this is not a good design when it comes to HA. When either the AOS or SQL Server instance has a failure, the whole environment will be out of order. ...

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