Yes, you are right, load 30 with a 2 CPU VM is nearly impossible.

In the past, there where a issue with a defect HD and a failing
resync on glusterfs here in the list.

- Take a look deeper look on your ovirt-node(s)

-- Systemcalls with (seeing kernel und userspace syscalls):

# perf top

- IO with:

# iotop

- Processes with:

# htop

Ansible Script to install the tools:

---
#
# Install Additional Packages on Centos 7 machines
# Possible Repos: base,updates,extras,centosplus
#
- hosts:
  - ovirt-nodes
  gather_facts: False
  tasks:
  - name: Install additional Packages
    yum:
      enablerepo: base
      name:
        - perf
        - iotop
      state: present

  - name: Install additional remote Packages
    yum:
      name:
        - https://kojipkgs.fedoraproject.org/packages/htop/2.2.0/1.el7/x86_64/htop-2.2.0-1.el7.x86_64.rpm
      state: present
...

I'm wondering how I can best limit the ability of VMs to overrun the load on hosts.  I have a fairly stock 4.2 HCI setup with three well spec'ed servers, 10Gbe/SSDs, plenty of ram and CPU with only a hand full of light use VMs.  I notice when the occasional demanding job is run on a VM I'm seeing load average on host node shoot up in to the 20-30s, how can a single "medium" vm cause host load to rise so high? 

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