Oracle VM Server is a powerful virtualization environment. The daily administration tasks can be done via the OVM Manager. But the interfaces have limitations and there are occasions when one needs to look under the hood. This talk introduces features, that are not covered by the documentation: * Dealing directly with the Xen Hypervisor * Manipulating the databases of the OVM Agent * Interesting config files * How File Repositories are organized All examples shown are available for download. The presentation provides detailed live demos.