Projects / OpenSAF


The Open Service Availability Framework (OpenSAF) is designed to work in a loosely coupled computer system with fast interconnections between the nodes. An application using OpenSAF could provide “five nines” (99.999 %) availability without re-inventing availability techniques. It provides mechanisms to replicate data between nodes, so that in case of failure the services can be started on a different node with the same state. It monitors itself for hardware and software failures, can keep several service instances running (with different availability models), and can automatically restart and migrate services to satisfy the availability requirements. It is based on the standard defined at It includes an availability management framework, a message service, a lock service, an event service, a checkpoint service, and much more.

Operating Systems

Recent releases

  •  02 Aug 2013 14:42

    Release Notes: This is a minor bugfix release containing around 50 fixes since version 4.3.0.

    •  02 Aug 2013 14:41

      Release Notes: This is a minor bugfix release containing around 50 fixes since version 4.2.3.

      •  03 May 2013 14:36

        Release Notes: This release implements the new IMM API version A.02.12, support for notifications when the information model is changed, and the ability to configure application log streams via configuration objects.

        •  16 Apr 2013 08:05

          Release Notes: This release contains almost 100 corrections.

          •  23 Jul 2010 19:35

            Release Notes: This release represents a significant step forward for the OpenSAF platform in new features, improved quality, and closer alignment with the SA Form(R) standards.


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