Audit Policy for Servers

Hi,

I have been asked to create a Audit policy for Servers OU. In the Server OU normally we will be placing a File Server, DHCP Server, SCCM Secondary Server, Print Server, vCenter Server and some of the application server.

I want to undertsand which Audit should be configured to generate the events on servers? Also once configured all the events will be also seen on Domain Controller.

Thanks HA