[ovirt-users] How are statistics collected for disk and network?

Good afternoon everyone. Is there any way to collect disk and network statistics from VMs without needing to install qemu-guest-agent? From what I noticed, this data only appears in Grafana after installing this package on each VM, is that really the case? Is there no way to collect this data without the need for the package? At least for the network interface I can see the traffic of the VM interface, but this data is not shown in Grafana. Thanks in advance!