Intrasite replication topology
A maximum of three replication hops between domain controllers, due to the addition of connection objects by the KCC Intersite Replication To ensure replication between sites, you must connect them manually by creating site links. Site links represent network connections and allow replication to occur. A single KCC per site generates all connections between sites. Active Directory uses the network connection information to generate connection objects that provide efficient replication and fault tolerance, as shown in Figure 1-12.
You provide information about the replication transport used, cost of a site link, times when the link is available for use, and how often the link should be used. Active Directory uses this information to determine which site link is used to replicate information. Customizing replication schedules so replication occurs during specific times, such as when network traffic is light, makes replication more efficient.
As an administrator, you must configure sites and replication to ensure that the most up-to-date information is available to users. Replication and site link configuration are discussed in more detail in Chapter 5, “Configuring Sites and Managing Replication.”
A domain controller stores and replicates:
The schema partition data for a forest.
The configuration partition data for all domains in a forest.
The domain partition data (all directory objects and properties) for its domain.
This data is replicated to additional domain controllers in the domain. For the purpose of finding information, a partial replica containing commonly used attributes of all objects in the domain is replicated to the global catalog.
A global catalog stores and replicates:
The schema partition data for a forest
The configuration partition data for all domains in a forest
A partial replica containing commonly used attributes for all directory objects in the forest (replicated between global catalog servers only)
A full replica containing all attributes for all directory objects in the domain in which the global catalog is located
A second CD-ROM contains a 180-day evaluation edition of Microsoft Windows Server 2003, Enterprise Edition.
Caytion The 180-day Evaluation Edition provided with this training is not the full retail product and is provided only for the purposes of training and evaluation. Microsoft Technical Support does not support this evaluation edition.
