Event ID - 1559

Event Id1559
SourceNTDS Replication
DescriptionA request has been made to promote this DSA to a Global Catalog (GC).
A precondition to becoming a GC is that this server host a read-only copy of all partitions in the enterprise. This server should hold a copy of partition DC=child,DC=h,DC=com but it does not. This system will not be promoted to a GC until this condition is met.

This may be because the KCC has not run, or that it is unable to add a replica of the partition because all of its sources are down. Please check the event log for KCC errors.

The KCC will retry adding the replica.
Event InformationYou cannot promote a Microsoft Windows 2000-based domain controller to a global catalog server. When you try to assign the role of global catalog to the server by clicking to select the <strong class="uiterm">Global Catalog</strong> check box, events that are similar to the following may be logged repetitively in the Directory Services log in Event Viewer.

According to Microsoft:
CAUSE 1 :

This problem occurs when the domain-naming update for the domain has not reached the domain controller that is experiencing the problem. Or, the domain-naming update for a domain that is newly promoted may not have reached any domain controllers outside that domain.
You can verify whether the domain-naming update has reached all the domain controllers by modifying the dumpDatabase attribute on the domain controller that is experiencing the problem.
RESOLUTION :
To resolve this problem, use one of the following methods.
Method 1:
If one or two domain controllers experience the problem, and other domain controllers in the same domain do not experience the problem, you must demote and then promote the domain controllers that are experiencing the problem.
To do this, follow these steps:
1. Log on to the Windows Server 2003-based domain controller by using an account that has domain administrator permissions.
2. Click Start, click Run, type dcpromo, and then click OK.
3. Follow the instructions in the wizard to demote the domain controller.
4. After you demote the domain controller, restart the Windows Server 2003-based computer.
5. Click Start, click Run, type dcpromo, and then click OK.
6. Follow the instructions in the wizard to promote the Windows Server 2003-based domain controller.
Method 2:
You must rebuild the domain that is mentioned in the event descriptions if one of the following conditions is true:
• No domain controllers in the domain received the update.
• The
Reference Links"You cannot promote a Windows Server 2003-based domain controller to be a global catalog server

You cannot promote a Windows 2000-based domain controller to a global catalog server

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