Open Stack

Hi there,

I am looking for a way to monitor the whole OpenStack environment including physical servers as well as the network. 
On every physical compute node is the Ceilometer compute agent installed, right?!
1) Does the compute agent collect data of the physical machine as well or is it just collecting data of the virtual machines?
2) Could it be useful to enhance the Ceilometer agent to collect data from the physical servers? 

Toni