Guidelines for Placing the Infrastructure Master
The infrastructure master does not need to be a highly available or high-capacity domain controller, and it should not host the global catalog
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Introduction
Guidelines
The infrastructure master is responsible for making fast updates of cross-domain references, such as membership changes in a group that contains user accounts from other domains. There is only one infrastructure master in a domain.
Apply the following guidelines to determine the placement of the infrastructure master:
■ Do not require that the infrastructure master be a highly available domain controller. There is no potential loss of information controlled by this operations master. In addition, the impact of the infrastructure master being offline for a short period of time is negligible because it does not affect end users.
■ Do not require that the infrastructure master be a high-capacity domain controller. The infrastructure master does not use server resources intensively.
■ Avoid placing the infrastructure master role on a domain controller that hosts a global catalog. If a domain controller that holds the infrastructure master role is also a global catalog server, cross-domain object references in that domain are not updated.
■ Locate the infrastructure master in the same site as a global catalog server. The infrastructure master must communicate with a global catalog server to update its cross-domain references.
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