On Wed, Nov 2, 2016 at 2:34 PM, FrancisM <francis at mytechrepublic.com> wrote: > Dear Gianluca, > > Thanks for sharing this information it will take my whole week again to > read the architecture and to understand it. By the way is it recommended to > run the OpenStack on top of ESXi6 for testing purpose? When I provision the > CentOS VMs for this test I append this line 'vhv.enable=true' inside the > .vmx file to support Nested-Environment inside my ESXi6 > > Its my first time to install and configure OpenStack so I'm wondering if I > will hit some limitation in my VM environment if I setup this inside of VMs > running in CentOS7.2 > > > Yes, in the past I was able to create a nested Openstack "farm" (tested both Grizzly and Icehouse versions) inside VSphere 5 using a vApp without any problems. In this vApp there were 13 VMs configured with CentOS 6: 3 compute nodes, 2 swift proxy nodes, 3 swift storage nodes, 3 controller nodes + 2 load balancer nodes (to manage calls for swift storage and swift proxy nodes) In ESXi 5 the steps to configure/enable nested hypervisors was different than in ESXi 6. Recently I was able to configure a nested oVirt environment in ESXi 6 and basically I followed what described here. http://nokitel.im/index.php/2016/03/21/nested-windows-hyper-v-server-2012-r2-on-vmware-vsphere-esxi-6/ and verifying that I was able to load kvm kernel module in my virtual hypervisors and start qemu-kvm on them. HIH, Gianluca