My 60-minute talk on Ganeti from the Usenix LISA '12 conference has been posted:
Ganeti is a cluster virtual server management software tool built on top of existing virtualization technologies such as Xen or KVM and other Open Source software. Ganeti takes care of disk creation, migration, OS installation, shutdown, startup, and can be used to preemptively move a virtual machine off a physical machine that is starting to get sick. It doesn't require a big expensive SAN, complicated networking, or a lot of money. The project is used around the world by many organizations; it is sponsored by Google and hosted at http://code.google.com/p/ganeti.
Thanks to Usenix for making these videos available to the public for free!