Hi All :

   Because of the design changes that were introduced in Microsoft System Center 2012 Configuration Manager, you cannot upgrade an existing Microsoft System Center Configuration Manager 2007 infrastructure to System Center 2012 Configuration Manager. However, you can maintain your existing investment when you migrate to System Center 2012 Configuration Manager and use the built-in functionally within System Center 2012 Configuration Manager.

   When you migrate from Configuration Manager 2007 to System Center 2012 Configuration Manager, you can access data from the site databases that you identify in the Configuration Manager 2007 infrastructure and then transfer this data to the System Center 2012 Configuration Manager hierarchy. Migration does not modify the data in the Configuration Manager 2007 hierarchy, but instead discovers the data and stores a copy of it in the System Center 2012 Configuration Manager database. You can migrate some or all of the supported data from a Configuration Manager 2007 site to a System Center 2012 Configuration Manager site. You can also migrate the data from a single Configuration Manager 2007 site to several different System Center 2012 Configuration Manager sites, or you can move data from multiple Configuration Manager 2007 sites to a single System Center 2012 Configuration Manager site.

Benefits of Migrating to System Center 2012 Configuration Manager :

When you migrate your Configuration Manager 2007 site infrastructure, you retain your existing management information and gain the following benefits from System Center 2012 Configuration Manager.

 

BenefitMore information

Native 64-bit code

System Center 2012 Configuration Manager is a native 64-bit application.

Site database improvements

The System Center 2012 Configuration Manager database supports full Unicode.

Database replication between sites

Replication in System Center 2012 Configuration Manager is based on Microsoft SQL Server, which improves the performance of site-to-site data transfer.

User-centric management

Users are the focus of management tasks in System Center 2012 Configuration Manager. For example, you can distribute software to a user even if you do not know the device name for that user. Additionally, System Center 2012 Configuration Manager gives users much more control over what software is installed on their devices and when it is installed.

Hierarchy simplification

The new central administration site type in System Center 2012 Configuration Manager, as well as changes to the behavior of primary and secondary sites let you build a simpler site hierarchy that uses less network bandwidth and requires fewer servers.

Role-based administration

This central security model in System Center 2012 Configuration Manager offers hierarchy-wide security and management that corresponds to your administrative and business requirements.


   

     About how to migration from Configuration Manager 2007 to System Center 2012 Configuration Manager RTM , you can reference this document .

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    Enjoy !

    Justin Gao

    Microsoft (China)