Starting with Windows Server 2016, Microsoft introduced built-in change tracking for Hyper-V virtual hard disks known as RCT. As a result, in the case of a Hyper-V host outage, or VM migration, change tracking is automatically preserved.

System Center 2016 Data Protection Manager or later will take the benefit of this feature when protecting Hyper-V VMs running on Windows Server 2016 with configuration version 8.0 and later.

With RCT, DPM backups benefit as follows:

• More reliable: Consistency Checks (CC) aren't required after a VM migration
• Scalable: More parallel backups and less storage overhead
• Improved performance: Lower impact on the production fabric and faster backup