During the deployment of Live Communications Server 2005 Enterprise Edition, there are several scenarios that should be avoided. These scenarios are not supported by Microsoft. Here are two of them:

 

Scenario 1:

Live Communications Server Backend database and Live Communications server Front end server are installed on the same server.

 

Scenario 2:

When deploying Live Communications Server 2005 Enterprise Edition, hardware load balancer is not configured in front of the Front End server.

 

These two scenarios easily occur and should be avoided. They are known to cause issues.

 

The following Live Communications Server 2005 Enterprise Edition (EE) server configurations are supported:

 

§          One EE server configured as an Enterprise Pool behind a hardware load balancer, with the back-end database on a separate computer.

§          Two or more EE servers configured as an Enterprise Pool behind a hardware load balancer, with the back-end database on a separate computer.

§          Two or more EE servers configured as an Enterprise pool behind a hardware load balancer, with a Communicator Web Access server colocated on one or more of the EE servers that make up the Enterprise Pool, and with the back-end database on a separate computer.

 

For more information about the supportability information of Live Communications Server 2005, please refer to the supportability guide that can be downloaded from the link below:

 

Live Communications Server 2005 Document: Supportability Guide

http://www.microsoft.com/downloads/details.aspx?familyid=e71bd1cd-5bd0-4293-8586-dd998060faf8&displaylang=en