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

Admin Docs

Administrators will find helpful information in the following links including a description of how Cinder works, manages storage and how to troubleshoot your Cinder installation.

Contributor/Developer Docs

The following links contained information for contributors and developers. There is information on setting up a development environment, a lit of our API information on how to add a driver and many other resources related to contributing to Cinder.


Cinder maintains drivers for volume backends, backup targets, and fibre channel zone manager fabric types. The list of the available drivers can be found here:

API Extensions

Go to for information about Cinder API extensions.

Configuration Reference

The following links provide information on the many configuration options available for Cinder including a sample configuration file.

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.