In System Center 2012 Configuration Manager, the built-in migration functionality replaces in-place upgrades of existing Configuration Manager infrastructure by providing a process that transfers data from active Configuration Manager 2007 sites. Migration can transfer most data from Configuration Manager 2007. If you do not migrate Configuration Manager 2007 to System Center 2012 Configuration Manager, or if you migrate data and want to maintain objects that migration does not migrate, you must re-create non-migrated objects in the new Configuration Manager hierarchy.

Because of the design changes introduced in System Center 2012 Configuration Manager, you cannot upgrade existing Configuration Manager 2007 infrastructure with one exception. Migration does support the upgrade of qualifying Configuration Manager 2007 distribution points to System Center 2012 Configuration Manager distribution points. This includes the upgrade of a Configuration Manager 2007 secondary site that is co-located with a distribution point.

If you upgrade a distribution point, the content on the distribution point computer is retained, and converted to the new System Center 2012 Configuration Manager format. Then the site system role is removed from the Configuration Manager 2007 hierarchy and the distribution point and site system server are added as a distribution point to the System Center 2012 Configuration Manager primary or secondary site of your choice. When a distribution point on a Configuration Manager 2007 secondary site upgrades, the secondary site is uninstalled and removed from the Configuration Manager 2007 hierarchy. The result is a System Center 2012 Configuration Manager distribution point with all migrated content converted to the single instance store.

For more information about migrating from Configuration Manager 2007 to System Center 2012 Configuration Manager, see Migrating Hierarchies in System Center 2012 Configuration Manager.

See Also