Nova comes with a selection of fairly basic smoke tests which you can run against your installation. It can be useful to use these to sanity check your configuration.
You need these packages
$> sudo yum install python-nose python-paramiko fedpkg python-nova-adminclient
Make sure you have a block of floating IPs created, also as described above.
How to test
Then, run the tests from a fedpkg checkout:
$> git clone git://pkgs.fedoraproject.org/openstack-nova.git $> cd openstack-nova $> git checkout f16 $> fedpkg prep $> cd nova-2011.3/smoketests $> python ./run_tests.py
Ensure all tests pass