OpenNebula

• Targeted Service Model
  • Infrastructure as a Service (IaaS)

• Targeted Deployment Model
  • Public Cloud
  • Private Cloud
  • Hybrid Cloud

• Licensing
  • Apache License v2.0

• Hypervisor Support
  • Xen
  • KVM
  • VMware

• Multi-Tenancy
  All aspects of the platform are multi-tenant. This includes logging, auditing, billing, and end-user control panel.

• Network Models
  • Configurations,
    • Ranged Virtual Network: A network defined by a range of IP addresses
    • Fixed Virtual Network: A network defined using a set of IP-MAC pair addresses
  • Virtual Networks can be made public/private

• Storage Support
  • FibreChannel
  • iSCSI
  • NAS
  • Local SCSI/SAS/SATA

• Virtual Machine Image Registry
  • Supports transfer to NFS, LVM with cow, VMFS, etc.

• Control Panel
  • Command Line Interface
  • OpenNebula Sunstone GUI

• Security
  • Authentication
    • Username and Password
    • SSH RSA keypairs
    • LDAP
  • Isolated Virtual Networks
  • Inter and Intra network communications through SSL

• Interoperatiblity
  • API
    • Open Cloud Computing Interface (OCCI)
      • Available for Java/Ruby
    • EC2 API
    • RESTful and accessible via HTTP/HTTPS
    • XMLRPCI for accessing core functionality
  • Supports multiple popular Virtualization Formats
  • Supports multiple popular Hypervisors
  • Adaptable/Customizable using plugins
  • Integration with existing tools like Ganglia

• Other
  • Cloud Bursting
    • Outsource VM to public cloud
    • Supports Amazon EC2
    • Simultaneous access to multiple cloud (private/public)
  • Federation
    • Federate multiple cloud instances to build a hierarchy of independent clusters

Source(s):
http://opennebula.org/_media/documentation:rel2.2:opennebula_2.2_features_rev20110511.pdf