You have come across a storage service for an open cloud computing service. It has identified itself as "Auth_login." It was abstracted from the Nova project.
To tame it for use in your own cloud: read http://docs.openstack.org
To study its anatomy: read http://cinder.openstack.org
To dissect it in detail: visit http://github.com/openstack/cinder
To taunt it with its weaknesses: use http://bugs.launchpad.net/cinder