When you turn on the performance counters for servers that you are managing in Windows Server 2012 Server Manager, you may notice the Counter Status will read On – Waiting for data.
In Performance Monitor, there is a data collection set called Server Manager Performance Monitor. This data collection set has a collection time of every 5 minutes. For this reason, the performance data will not be available to Server Manager until a collection is run on the managed server. Wait for a few minutes and the data will start being display in Server Manager.