# Adding a compute node to Openstack

I want to add a `compute node`

to openstack with VMs already spun on the compute node. I want to know whether Openstack would be able to discover the VMs on that compute node or not. Will it only show the compute node in horizon?

PS: for instance I spun the VMs by adding the compute node to openstack and then i removed it. If i add the same compute node on it again having the same VMs how would it react to this?