Backup/Restore for the Keystone configuration and database are separate actions from the controller Backup/Restore. The backup/restore does not backup any keystone related configuration/credentials therefore any changes made to keystone will be lost after the restore.
NOTE: These instructions apply to the default local Keystone instance (Keystone 2012.2) as specified in the HP VAN SDN Controller Installation Guide. If you are using a different Keystone installation, please follow the OpenStack instructions for backup/restore of the Keystone instance specific to your installation. For OpenStack documentation, visit http://docs.openstack.org.