[ Thanks to Peter Parker for this
link. ]
“The Fedora team has followed the Xensource model and
begun to store all VM configuration details in a database, referred
to as xenstore. This enables the rest of the tools to use one
consistent resource for reading configuration details, but also
serves to complicate configuration changes. For example,
virt-manager now shows all configured virtual machines, whether
they are running or not (it used to only show running ones,) which
enables starting of paused or off virtual machines from within the
tool. The bummer is that a complex configuration requires the
manipulation of the database through a series of command line
tools.”