This article discusses various native tools available in Windows Server 2012 for monitoring system health and performance. It covers both GUI and non-GUI tools such as Performance Monitor, Reliability Monitor, Resource Monitor, Service snap-in, Server Manager, Task Manager, Powershell, WMI, etc. The article also provides examples of how to use these tools to collect metrics related to CPU, memory, disk, network, events, and services. It concludes by mentioning Datadog as a comprehensive solution for monitoring production systems across various technologies.