Oracle’s private IaaS/cloud.. based on Oracle VM and OVM templates, using Sun Blade 6000 plus NEM switch. Storage is based on their ZFS appliance.
Provisioning is based on OVM templates (almost similar to VMware template), and oracle provides preconfigured templates for their db/middleware etc.
Here are 2 papers from oracle..
“Oracle Optimized Solution for Enterprise Cloud Infrastructure is a
complete, integrated solution which can dramatically reduce the time required
to architect, deploy, and manage Infrastructure-as-a-Service clouds, and
ultimately lower TCO and improve productivity for enterprises and cloud
service providers.”
http://www.oracle.com/us/solutions/opt-solutions-cloud-technical-wp-405951.pdf
http://www.oracle.com/us/solutions/oracle-opt-sols-cloud-inf-sol-brief-406108.pdf
Added Oracle Exadata details