The CMS is the driver of all the data collection needs. When registering a server in CMS, follow these best practices. Register only the replicas,
EPM is great tool that builds on top of the SQL Server Policy Mangement and Central Management Server to provide you overview of your enviornment.
Microsoft released Central Management Server (CMS) with SQL Server 2008; it allowed us to have great functionality for multi-server management. However keeping that list up-to-date