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High availability and scalability design guide for Forefront TMG

Published: November 15, 2009

Updated: February 1, 2011

Applies To: Forefront Threat Management Gateway (TMG)

The high availability and scalability design guide for Forefront TMG helps you plan the continuous availability of Forefront TMG and any applications it publishes, and the scaling of your Forefront TMG deployment as the needs of your organization grow. It provides you with information that will help you make the deployment design choices that are appropriate for your business goals and for your environment.

About this guide

This guide is intended for the system administrator or system architect responsible for the design and deployment of the Forefront TMG servers and arrays in the production environment. Before you read this guide, you should be familiar with the concepts of network design and setup, high availability, and load balancing.

Identifying and mapping your high availability and scalability deployment goals

The following table is designed to help you identify your Forefront TMG high availability and scalability deployment goals. After you identify the goals that are appropriate for your organization, you can map them to the relevant Forefront TMG design or designs.

 

Deployment goal Forefront TMG design

Ensure the operational continuity of the Forefront TMG deployment and meet increasing performance demands.

Forefront TMG server high availability and scalability. For information, see Planning for Forefront TMG server high availability and scalability.

Ensure uninterrupted connection to the Internet.

Internet service provider high availability. For information, see Planning for Internet service provider high availability.

Enable high availability of servers in a published Web server farm, for inbound access.

Load balancing Web server farms. For information, see About Web publishing load balancing.

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