Note: VMware Update Manager 5.0 still requires a 32-bit driver for your DSN connection, as VMware Update Manager 5.0 is still a 32-bit application. However, it must be run on a 64-bit operating system.
Note: For more information, see the vSphere Compatibility Matrix.
The vCenter Server Data Migration Tool to help you migrate much of your vCenter Server 5.0 configuration automatically. The Data Migration Tool is located on vCenter Server 5.0 Installation Media, under the folder datamigration. For instructions on how to use the Data Migration Tool, see the vSphere 5.0 Upgrade Guide.
There are several scenarios where this utility can assist in the migration process. However, each scenario is slightly different according to your configuration and environment. Read this article carefully and consult the product documentation for further information on performing these tasks.
You can use the vCenter Data Migration Tool to automatically migrate these to a new server:
For more information on migrating your database using the Data Migration Tool, see Migrating to vCenter Server 5.0 using the Data Migration Tool (2005328).
The vCenter Data Migration Tool does not automatically:
Before you upgrade vCenter Server, back up the vCenter Server database. If you are migrating vCenter Server to a new machine, you have several options for moving the database.
Microsoft SQL Server Express database
If the database was installed by the vCenter Server installer, back up the database, and move the database along with other configuration data using the data migration tool. A separate database migration step is not necessary.
If the SQL Server Express database was not installed by the vCenter Server installer, back up the database and restore it onto the machine on which you are installing vCenter Server.
Microsoft SQL Server database
Perform one of these options:
Note: When you decide between the backup/restore option or the detach/attach option, consider the downtime required. For guidance on these options, consult your organization's database administrator.
Other local databases
Back up the database, and restore it onto the machine on which you are installing vCenter Server.
If the license server was installed with vCenter Server on the source machine, the data migration tool cannot migrate the license server to the destination machine. You must migrate the license configuration manually.
To migrate the license configuration:
In addition, consider these points:
If the upgrade or migration is unsuccessful, and you backed up your version 4.x host configuration, you can reinstall the 4.x ESX or ESXi software you upgraded or migrated from, and restore your host configuration. See Restore the ESX Host Configuration orRestore the ESXi 4.x Host Configuration in the vSphere Installation and Setup Guide.
Based on VMware KB 2004265