I have just perfomed the first customer upgrade of a DPM 2007 server to DPM 2010. This went really well. Just as I did with the DPM 2010 RC upgrade I dumped the DPM database with the CMDLET “dpmbackup.exe –db” just in case something went wrong.
When the upgrade was finished I reviced a nice notice regarding the next steps for completing the upgrade. Restart the DPM server, upgrade the DPM agents, run consistency checks on all protected members.