OpenStack is an Ifrastructure-as-a-Service (IaaS) computing solution that is open source under the Apache License. The modular architecture includes:

• Computing
• Object Storage
• Block Storage
• Image Service
• Identity Service
• Dashboard Admin
• Networking

Customers such as the San Diego Supercomputer Center (SDSC) choose OpenStack so their large data stores can be accessed easily and openly by the public.