I wrote a new KVM plugin for Ohai which gives a ton of important information about KVM guests, which is stored in the node attributes for the host. This makes it easy to find out which guests are currently on a host and other information about the guest, such as: cpu allocation, memory usage, persistence, autostart, etc. One of the things you can do once you have this plugin installed and running on the host is have the guest perform a search to find it’s host and then save that information somewhere on the guest.
Today I posted my first Ohai plugin to Github and put a link on the Opscode Community Plugins wiki page. I know not a whole lot of people useVServer, but hopefully some will find it useful. :) #opschef