[one-users] adding an existing VMFS datastore

[Davide Papini]

Dear All

I am a researcher and at the university we are installing an opennebula 
cloud. for now we have just one ESXi node.

I installed the opennebula frontend on a VM on the ESXi server. This is 
the same ESXi server which I would like to use as a node for opennebula.

My question is simple:

-does opennebula destroy the datastore and resctructure it when the vmfs 
datastore along with the ESXi node is added to the setup?

-can I configure the system and images datastores on the same datastore? 
How can I do this?

Thanks