Frank Martin 
Oracle
Virtualization of Enterprise Data Centers using XEN.
******
Oracles IT teams have used XEN virtualization since May 2005 to create
a highly virtualized environment for its internal customers using the
Oracle technology stack. The experience of this team in moving to
virtualization under XEN provides a framework for you to understand
the benefits, the traps and the best practices for converting your
workload to use XEN in the modern data center.