Hi
I am making use of proxmox 4.4-1 virtual environment.The latest version 5 is not as stable this is why i am running version 4.With regards to ceph no need to make use of it.
You can make use of nfs storage.On my research what I have done it sounds like I need to look for a fault tolerance system which i just cannot find anywhere.
If you can do live migration from one node to another node surely you should be able to run this seamlessly if one node suddenly shuts down without restarting.
Just shout if there is anything else you need and thanks for your advice thus far :)
Hunty