Wednesday, January 4, 2012

Transitioning from Exchange Server 2003 to Exchange Server 2010 Part-4

In this multi-part article, we will take a deep dive into how to transition between Exchange forests with different versions of Exchange deployed.



Transitioning from Exchange Server 2003 to Exchange Server 2010 Part-1
Transitioning from Exchange Server 2003 to Exchange Server 2010 Part-2
Transitioning from Exchange Server 2003 to Exchange Server 2010 Part-3
Transitioning from Exchange Server 2003 to Exchange Server 2010 Part-5



8. Bulk Movement


Move Mailboxes

When you open the Exchange Management Console on the Exchange Server 2010 Mailbox Server and you navigate to the Mailbox option under Recipient Configuration you see a list of mailboxes in the results pane. In the Recipient Type Details column you can see what kind of mailboxes there are. The “Legacy Mailbox” is still an Exchange 2003 Mailbox; a “User Mailbox” is an Exchange Server 2010 Mailbox.

To move a mailbox right click the mailbox and select “New Local Move Request…” In the wizard that shows up you’ll see the mailbox(es) that you selected. Click the Browse button to select a Mailbox Database you want the mailboxes to move to.
                                                   Select New Local Move Request

                                               Select target Exchange 2010 Database name
Now you can view the both mailbox Legacy and Moved mailbox in a single console


                                      After move mailbox you can clear move request

                                               

Move the Public Folder Hierarchy


When all mailboxes are moved to the Exchange Server 2010 Mailbox Server it’s time to remove the Public Folder Database from Exchange Server 2003. Since this Public Folder Database contains a replica of the Public Folder data the replica has to be moved to another server, in this case the Exchange Server 2010 Mailbox Server.

Logon to the Exchange Server 2003 server and open the Exchange System Manager. Navigate to the Exchange Server 2003 Mailbox Server, right click the Public Folder Database and select “Move All Replicas”. Select the Exchange Server 2010 Public Folder database in the drop down box and click OK.

A warning message is displayed that the Public Folder Replicas will be move to the other Public Folder Database and that this can take a considerable amount of time. I’ve seen situation where this took more than 24 hours to complete. Replication takes place using SMTP messages that are sent across the Interop Routing Group Connector to the Exchange Server 2010 Public Folder Database.

As can be seen in the warning message you can check the ‘Public Folders Instances’ folder under the Public Folder database to see if it’s empty. If it’s not and you want to delete the Public Folder Database another warning message is displayed that the Database cannot be deleted.

                                               Select target PF database.
Now we will do some test and then uninstall Exchange 2003 from the environment.

First i created a mailbox in Exchange 2010

I was able to send / receive email from 2003.

I am also able to see free/busy info from both environments, since we replicated the free/busy PF.


Part-5




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