How to combine 3 physical servers (more will be added in the future) so that you can use live migration and have a web interface?

Question

KVM

Good time!
Prompt with a choice of means of management of KVM.
Now I use one server with a KVM hypervisor that runs about 20 machines. (I manage it via virsh + virt-install + virt-
manager ) -interface. Of the adequate, actively developed tools, I see OpenStack and OpenNebula. I'm trying to figure out what's best to use. Distributed storage for them is in the plans - either most likely to use ceph, or rely entirely on OpenStack components. What should you pay more attention to?

Answer 1

For this level, the best solution is Proxmox.
Advantages: 1. Has
a simple and clear web interface.
2. There is clustering.
3. 3 nodes are the best option for this cluster.
4. Ceph support

Answer 2

There is only one drawback with Proxmox - it's an old kernel. At me on new iron hangs tightly.
Although the new kernel which is 3.X works well. I had to install KVM and do without OpenVZ. And it's terrible, just got used to the delights of OpenVZ and a convenient interface... :(((