No Disk IO Displayed for OpenVZ Containers

Well, first, what was gained and what is lost in switching?
Next, there are no instructions for changing the scheduler for a NAS device. I have no CT's running on local storage. The NAS are not in the /dev/ folder, they are in the /mnt/ folder. Any help is appreciated. If there is a cost performance for CFQ scheduler, then I will not be changing. Performance is my number one concern
 
Oh, Disk IO for NFS does not work anyways (never worked, because NFS does not provide that info).
 
Is there any way to find disk IO going to the NFS?
It is an OmniOS/Napp-IT ZFS server.
There is no way to check SNMP for it
There is no way to use monitors such as PRTG and Pandora FMS.
There is no way to check outbound traffic from Proxmox to the NFS.
Is there a way to check a single ethernet graph for my storage network?
All storage should be going across vmbr2