spring_vista

 Profile Answers by spring_vista 

• Mar 13th, 2008

 

Active Directory,the Directory service that is included with the Microsoft Winows 2000 and 2003,is a distributed directory service.Objects in the Directory are distributed across the domain controllers in a forest, and all the domain controllers in a domain can be updated directly,this is called Multimaster.REPLICATION is the process by which the changes made on one domain controller are synchronized with all the other domian controllres in the domain or the forest.Data integrity is maintained by tracking the changes made on each dc and updating other domain controllers in a systematic way.For any further information you can also refer to the following microsoft articles:-How Active Directory Replication Topology Workshttp://technet2.microsoft.com/windowsserver/en/library/c238f32b-4400-4a0c-b4fb-7b0febecfc731033.mspx?mfr=true How the Active Directory Replication Model Workshttp://technet2.microsoft.com/windowsserver/en/library/1465d773-b763-45ec-b971-c23cdc27400e1033.mspx?mfr=true

bhatia.tanu

 Profile Answers by bhatia.tanu 

• Dec 11th, 2008

 

Active Directory also includes a replication feature. Replication ensures
that changes to a domain controller are reflected in all domain controllers
within a domain. A domain controller stores a replica of the domain directory.
Each domain can contain one or more domaincontrollers.Within a site, Active
Directory automatically generates a ring topology for replication among domain
controllers in the same domain. The topology defines the path for directory
updates to flow from one domain controller to another until all receive the
directory updates .

Within a site, replication between domain controllers happens
automatically.The ring structure ensures that there are at least two replication
paths from one domaincontroller to another. Therefore, if one domain controller
is down temporarily, replicationstill continues to all other domain
controllers.Active Directory periodically analyzes the replication topology
within a site to ensurethat it is still efficient. If you add or remove a domain
controller from the network or asite, Active Directory reconfigures the topology
to reflect the change.