If you used the data migration tool to back up the configuration of a vCenter Server system connected to a nonbundled database, use the data migration tool to install vCenter Server and restore the vCenter Server configuration to the destination machine.

Ensure that the destination vCenter Server machine has access to all other systems that it must connect to, such as the domain server, Windows Active Directory server with vCenter user accounts, database server, license server, and so on.


Copy the datamigration folder from the source machine to the destination machine.


Insert the vCenter Server installation media into the DVD-ROM drive on the new machine, or copy the installation ISO image to the new machine.


From the Windows command prompt, change to the datamigration folder copied from the source machine and type install.bat.


If the name of the new machine is different from the name of the source machine, enter y to continue.


Enter the path to the vCenter Server installation media.

For example, if the installation media is in D:\Temp\VMware-VIMSetup-en-4.1.0-build number, enter D:\Temp\VMware-VIMSetup-en-4.1.0-build number.

The install script verifies that migration data is present, and launches the vCenter Server installer.


Select a language for the installer and click OK.

The Welcome page informs you that an earlier version of vCenter Server is on the computer and will be upgraded to vCenter Server 4.1.


When the Welcome screen appears, click Next.


Review the End-User Patent Agreement and click Next.


Select I agree to the terms in the license agreement and click Next.


Enter the information for the remote database.


Click Use an existing supported database.


Select the DSN that was used for the database on the 32-bit source machine and click Next.


Enter the user name and password for the DSN and click Next.

If you specify a remote SQL Server database that uses Windows NT authentication, the database user and the logged-in user on the vCenter Server machine must be the same.


Select Upgrade existing vCenter Server database and select the I have taken a backup of the existing vCenter Server database and SSL certificates check box.


Click Next.


Select how to upgrade vCenter Agent and click Next.




vCenter Agent is upgraded on all hosts in the vCenter Server inventory.


All hosts are disconnected from vCenter Server. To upgrade vCenter Agent, reconnect the host to vCenter Server.

Select this option if one of the following applies:

You need to control the timing of vCenter Agent upgrades on specific hosts.

The number of hosts in the vCenter Server inventory is large, and you anticipate that upgrading vCenter Agent on all hosts would negatively affect vCenter Server performance.

vCenter Agent is installed on each host in the inventory to enable vCenter Server to manage the host. vCenter Agent must be upgraded when vCenter Server is upgraded.


Enter the password for the vCenter Service user account.


Either accept the default destination folders or click Change to select another location, and click Next.

The installation path cannot have commas (,) or periods (.).


To install the vCenter Server on a drive other than C:, verify that there is enough space in the C:\WINDOWS\Installer folder to install the Microsoft Windows Installer .msi file. If you do not have enough space, your vCenter Server installation might fail.


Enter the port numbers to use or accept the port numbers shown and click Next.

The port numbers displayed are those that were backed up from the source VirtualCenter or vCenter Server installation.


Select the amount of memory to allocate to the vCenter JVM in Tomcat, according to the number of hosts in your environment.

You can adjust this setting after installation if the number of hosts in your environment changes.


Click Install.


When the vCenter Server installation finishes, click Finish.

The data migration tool restores the backed up configuration data.


Check the \logs\restore.log file in the datamigration folder, and verify that no errors occurred during the restore process.

vCenter Server is installed, and the settings that you backed up are restored. The remote database is upgraded. After the installation is complete, vCenter Server is started.

If you used the data migration tool to back up VMware vCenter Update Manager configuration data, the vCenter Update Manager installer is launched. Complete the steps in the installation wizard to install vCenter Update Manger and restore the configuration. See the VMware vCenter Update Manager documentation for more information.

If you used the data migration tool to back up VMware vCenter Orchestrator configuration data, the vCenter Orchestrator installer is launched. Complete the steps in the installation wizard to install vCenter Orchestrator and restore the configuration. See the VMware vCenter Orchestrator documentation for more information.

If the new vCenter Server machine has a different name than the source machine, update plug-ins and other solutions that access the vCenter Server system with the name of the new machine. See Update the vCenter Server Name for Plug-Ins.

If a license server was installed on the source machine, install the license server on the destination machine and migrate the licenses. See Migrate a License Server Installed on the Same Machine as vCenter Server.

See Postupgrade Considerations for vCenter Server.