It is important to stop all services on Server A and back up the entire Exchsrvr directory. If the logs and database files are on different drives, make sure to back these up as well, or run the Performance Optimizer and move all logs and databases to the Exchsrvr directory where Microsoft Exchange Server was installed.
If you have the Key Management server installed, make sure to back up the Security directory that was created by KM server. This directory is created by default on drive C. Note, however, that the Security directory may not be under the Exchsrvr directory. You also need to back up the KM server startup disk.
The following steps are required to back up your data on the original server.
To back up data on your server
From the Support\Sample\Csvs\Mailbox directory on the Microsoft Exchange Server compact disc, copy Mailbox.csv to the hard drive.
Change the Read-Only attribute on this file.
From the Support\Samples\csvs\Dl directory on the Microsoft Exchange Server compact disc, copy Dl.csv to the hard drive.
Change the Read-Only attribute on this file.
In the Microsoft Exchange Server Administrator window, choose Directory Export from the Tools menu.
In the Directory Export dialog box, under Export objects, select only the Mailboxes check box.
Under the Home Server list, select Server A.
Select the Include subcontainers check box, and then select Mailbox.csv as the output file.
After export, edit Mailbox.csv and change all occurrences of Server A to Server B. Save the file as Mailbox-Server B.csv.
Return to the Microsoft Exchange Administrator window, and from the Tools menu, select Directory Export.
Select only the Distribution list check box.
Under the Home Server list, select All.
Select the Include subcontainers check box, and then select Dl.csv as the output file.