Why Monitor?

SharePoint can be resource-intensive, putting a strain on the server's hardware from the beginning. Because it depends heavily on processor and RAM, SharePoint will begin to show signs of stress if your server's hardware struggles to support it. In addition, SharePoint is very dependent on network access. If you can't reach the server because its network card (NIC) is overwhelmed or the network itself is too busy, SharePoint is broken as far as users are concerned. The hard drive can be pelted by paging requests if the system's RAM is not up to SharePoint's activity requirements (not to mention the extra RAM requirements each web application adds). SharePoint's databases can fill quickly with mission-critical data that requires user access....