Cinder, the OpenStack Block Storage Service

Cinder, the OpenStack Block Storage Service

Cinder is an OpenStack project to provide “block storage as a service”.

  • Component based architecture: Quickly add new behaviors
  • Highly available: Scale to very serious workloads
  • Fault-Tolerant: Isolated processes avoid cascading failures
  • Recoverable: Failures should be easy to diagnose, debug, and rectify
  • Open Standards: Be a reference implementation for a community-driven api

This documentation is generated by the Sphinx toolkit and lives in the source tree. Additional draft and project documentation on Cinder and other components of OpenStack can be found on the OpenStack wiki. Cloud administrators, refer to

CLI Reference

Information on the commands available through Cinder’s Command Line Interface (CLI) can be found in this section of documentation.

Full documentation on the python-cinderclient is in the python-cinderclient documentation.

API Extensions

Go to for information about Cinder API extensions.

Block Storage v3 API Microversion History: The block storage v3 API evolves over time through API Microversions. This provides the history of all those changes. Consider it a “what’s new” in the block storage v3 API.

Indices and tables


Creative Commons Attribution 3.0 License

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.