Today I moved my DC System State backups to DPM 2012. After running the first initial sync the status goes to a green OK and then immediately to a red “replica is inconsistent”. Made sure that space was not an issue as this can cause problems but the servers had ample space.
So like Windows Server 2008 R2 I i installed the following feature: Windows Server Backup.
After a reboot I ran a consistency check and all the DC’s were showing OK now.
Hope it helps.