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Remove Orphan Exchange 2003

There is a old Exchange server 2003 "server01" left in my Exchange organization. It has been offline and can't access physically.

Should I remove whole "CN=First Administrative Group", or just remove "CN=Servers" ? What else should I check and remove beside that ?

Thx
adsi.png
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AXISHK
Asked:
AXISHK
4 Solutions
 
timgreen7077Exchange EngineerCommented:
You will also need to remove the DBs, you will remove the servers but not the hierarchy, reference link:

http://www.lebleuet.net/386

1.Connect to the domain controler
2. Launch the run dialog (Windows Key + R)
3. Type in the command “adsiedit.msc” et then press “OK”
4. Right click on the console then “Connect to:”
5. In the connexion dialog select “Well known Naming Context”
6. In the drop down menu select “Configuration”
7. Explode “CN=Configuration [domain]\CN=Services\CN=Microsoft Exchange\CN=[organization]\CN=Administrative Groups\CN=Servers”
8. Right click on the dead server and pick “Delete”
9. We also need to delete Database information as well, navigate to “CN=Configuration [domain]\CN=Services\CN=Microsoft      
10. Exchange\CN=[organization]\CN=Administrative Groups\CN=Databases”
11. Explode each items to find wich one is related to the old server, then delete it as well.
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Amit KumarCommented:
Just remove "CN=Server01". this will be safe to remove because it will just delete it's entries not anything else.
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AmitIT ArchitectCommented:
Don't remove complete chain. Expand CN=Servers, under that you will see old server. just delete that only. Then you search server object in AD and remove from AD also. You are done. You can review adsi part in this KB too: https://blogs.msmvps.com/bradley/2011/01/28/manually-removing-exchange-2003-from-the-migration-process/
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Kurt JohnsonTechnical ManagerCommented:
Here's an excerpt from a Microsoft KB regarding removing Exchange. I've included only the info pertinent to your situation.

Remove the Exchange 2003 server from Active Directory

To remove the Exchange 2003 server from Active Directory, follow these steps:
Click Start, point to Programs, point to Microsoft Exchange, and then click System Manager.
Expand Administrative Groups/Your_Administrative _Group_Name/Servers.

Note In this step, Your_Administrative _Group_Name is a placeholder for the name of your administrative group.
Right-click the name of the Exchange 2003 server that you want to remove, click All Tasks, and then click Remove Server.
This procedure will remove all references to the server in Active Directory and remove the mailbox-enabling attributes from all Active Directory users who have mailboxes on the server that you removed.

If you cannot install or run Exchange System Manager, you may use the ADSI Edit snap-in to manually remove enough of the server attributes so that you can try a successful reinstallation. This method does not perform cleanups of references to the server object outside the server's own container. Microsoft does not recommend that you use this method unless you intend to immediately reinstall the server in the same administrative group, because you may have to manually remove or edit many attributes on objects throughout Active Directory.

The ADSI Edit snap-in is available in Windows Support Tools. For more information about how to install Windows 2000 Support Tools, click the following article number to view the article in the Microsoft Knowledge Base:
301423 (http://support.microsoft.com/kb/301423/ ) How to install the Windows 2000 Support Tools to a Windows 2000 Server-based computer

Warning If you use the ADSI Edit snap-in, the LDP utility, or any other LDAP version 3 client, and you incorrectly modify the attributes of Active Directory objects, you can cause serious problems. These problems may require you to reinstall Microsoft Windows 2000 Server, Microsoft Windows Server 2003, Microsoft Exchange 2000 Server, Microsoft Exchange Server 2003, or both Windows and Exchange. Microsoft cannot guarantee that problems that occur if you incorrectly modify Active Directory object attributes can be solved. Modify these attributes at your own risk.
To use the ADSI Edit snap-in to remove an Exchange 2003 server from an Exchange 2003 administrative group, follow these steps:
Click Start, point to Programs, point to Windows 2000 Support Tools, point to Tools, and then click ADSI Edit.
Expand each of the following items: Configuration Container
CN=Configuration, DC=Domain_Name,DC=com
CN=Services
CN=Microsoft Exchange
CN=Your_Organization_Name
CN=Administrative Groups
CN=Your_Administrative_Group_Name_Or_Exchange5.5_S ite_Name
CN=Servers

Note In this procedure, Domain_Name is a placeholder for the name of your domain, Your_Organization_Name is a placeholder for the name of your organization, and Your_Administrative_Group_Name_Or_Exchange5.5_Site _Name is a placeholder for the name of your administrative group or Exchange 5.5 site.
Right-click the Exchange 2003 server object, and then click Delete.
Click Yes in every adsiedit dialog box that prompts you to confirm the deletion.
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