Most configuration information is available in the
nova.conf configuration option file. Here
are some general purpose configuration options that you can use
to learn more about the configuration option file and the node.
The configuration file nova.conf is typically stored in
/etc/nova/nova.conf.
You can use a particular configuration option file by using
the option (nova.conf)
parameter when running one of the nova- services. This inserts
configuration option definitions from the given configuration
file name, which may be useful for debugging or performance
tuning. Here are some general purpose configuration
options.
If you want to maintain the state of all the services, you can use the state_path configuration option to indicate a top-level directory for storing data related to the state of Compute including images if you are using the Compute object store.

