During the migration from ConfigMgr 2007 to 2012 you can "share" your 2007 DPs as follows:
- DPs are still owned by the 2007 environment
- Content can be provided to the 2012 clients
- Provides a mechanism to perform in place upgrades of DPs to 2012 (including migration of 2007 Secondary Sites to 2012 DPs)
Open the properties of the Source Hierarchy
Enable Distribution Point sharing for the Source Site. This is a site-wide configuration and cannot be done for individual DPs.
Enabling this setting starts a “data gathering job”. This job will synchronise details of the 2007 DPs so that they will be available in the 2012 environment.
View job in console
Verify progress using the migmctrl.log file.
On completion of this job the shared DPs are available in the SCCM 2012 console.
Note the column “Eligible for Upgrade”