How it works...

The DPM agent is the core component for the DPM so that it's able to provide restore capabilities for your data. The DPM relies on the DCOM object of the protected server which is mapped to the DPMRA service so that the SQL job on the DPM server starts. System Center Data Protection Manager stores all protection group configurations as SQL Jobs, and the SQL Server Agent initializes the DPM agent to start creating snapshots by using the underlying architecture of the Volume Shadow Copy Service (also known as Volume Snapshot Service or VSS) within the operating system.

The setdpmserver.exe executable command has the ability to configure the DPM agent to set which DPM server the DPM agent reports to. It also provides the configuration needed for the local Windows Firewall so that the DPM agent can start reporting to the DPM server.