Henry,
Shawn is absolutely correct. However, here are a few details that might
help you along. AD Replication can be a bit tricky.
First, as Shawn suggested, you should set up Sites using the adss mmc. You
will find that you have a Default-First-Site-Name already. If you so
choose, you can rename it to whatever makes sense. I would then create the
appropriate Subnet objects and associate them with this Site. This is very
important.
I would then create the second Site. Give it whatever name makes sense.
Create the appropriate Subnet objects and associate them with this Site.
Make sure that you move the DC object that is actually located at this Site
to this Site.
If you have not already done so, create the Site Link. You need to do this
so that the KCC will know about the two Sites and how to handle everything.
Here are several links:
How to create and configure a WIN2000 Site
http://support.microsoft.com/default.aspx?scid=kb;en-us;318480
How to create and configure a Site Link
http://support.microsoft.com/default.aspx?scid=kb;en-us;316812
How to Optimize the location of DCs and GCs **** This is what you are
currently experiencing ****
http://support.microsoft.com/default.aspx?scid=kb;en-us;306602
The Role of Bridgehead Servers **** I would let the KCC handle this ****
http://support.microsoft.com/default.aspx?scid=kb;en-us;271997&Product=win2000
The Role of the ISTG
http://support.microsoft.com/default.aspx?scid=kb;en-us;224815&Product=win2000
How to T/S Intra-Site Replication Issues
http://support.microsoft.com/default.aspx?scid=kb;en-us;249256
How WIN2000 Clients locate a DC
http://support.microsoft.com/default.aspx?scid=KB;en-us;247811
How WINXP Clients locate a DC
http://support.microsoft.com/default.aspx?scid=kb;[LN];314861
Just a few things to know:
1) in WIN2000 Active Directory, there are two kinds of Replication:
intra-site and inter-site.
1a) intra-site replication is the AD replication that happens between
all DCs in that specific site.
1b) inter-site replication is the AD replication that happens between
AD Sites.
2) in WIN2000 Active Directory, the KCC ( Knowledge Consistency Checker )
dynamically takes care of creating and managing all incoming replication
objects.
2a) for intra-site replication, you - the Admin - really do not
*need* to do anything. The KCC uses the
intra-site topology generator to do all of this.
2b) for inter-site replication, you - the Admin - really only *need*
to create the Site Link ( and possibly
Site Link Bridges ). The KCC does the rest with help from the
inter-site topology generator.
3) in WIN2000 Active Directory, all replication is based on one-way incoming
replication objects. This means that if you have two DCs in Site1 the
following will happen:
- on DC01 there will be an incoming replication object representing
DC02 for each NC
- on DC02 there will be an incoming replication object representing
DC01 for each NC
4) in WIN2000 Active Directory, there are three AD Partitions, or Naming
Contexts, that are replicated;
- Schema Naming Context
- Configuration Naming Context
- Domain Naming Context
5) in WIN2000 Active Directory, the Schema NC and Configuration NC are
replicated to each and every DC in the entire Forest while the Domain NC is
replicated to each and every DC in that specific domain.
6) in WIN2000 Active Directory, replication between Sites takes place
between the Bridgehead Server in each Site. So, if you have Site1 with
three DCs and Site2 with one DC the following will happen:
- the KCC selects one of the three DCs in Site1 to act as the
Bridgehead Server for inter-site replication
and the KCC selects one of the one DC ( sounds funny, huh? ) in Site2
to act as the Bridgehead Server.
The inter-site replication for that round happens between the two
Bridgehead Servers.
HTH,
Cary
