OrangeFS Documentation

Click the link below for the version of documentation you wish to access.


Description/Product Changes

OrangeFS 2.9

Added capability-based security, scalable distributed directory service, new documentation sections and more extensive testing than any prior version of OrangeFS.

OrangeFS 2.8.8

Improved performance, added support for Hadoop MapReduce

OrangeFS 2.8.6*

Improved performance, extended Linux Kernel support (including 3.x) and new Direct Interface libraries for POSIX and system calls. Also introduced Web Pack, providing support for WebDAV and S3.

OrangeFS 2.8.5*

Improved stability and metadata performance for small I/O, replicated data for immutable files, distributed metadata for directories, SSD support for metadata, enhanced client libraries and the Windows Client.


When development for OrangeFS began, the PVFS2 documentation set was the latest version available. It continues as a useful reference while a new full set of documentation for OrangeFS is phased in with future releases (see Documentation Road Map).

*The documentation for version 2.8.8 includes documentation for all features in versions 2.8.6 and 2.8.5.

Source Code Documentation

Source Code Documentation is presented in a separate online interface associated with Doxygen, which is the open source software package used to generate the content directly from the source code. It provides in-depth descriptions of the OrangeFS/PVFS2 source file components.

Link To Source Code Documentation

Amazon Web Services Documentation

OrangeFS is available on Amazon Web Services (AWS) Marketplace, offering customers the simplicity of running Big Data, HPC and other high-performance and data-intensive applications on The Cloud. AWS provides on-demand delivery of the OrangeFS software, along with hardware to run it, as needed. You can access as many or as few storage nodes as you like, for as long as you need them.

Accessing OrangeFS Documentation for AWS

When you subscribe to AWS and initiate a Cloud installation of OrangeFS, you will be guided to the appropriate documentation, depending on the options you choose, as follows:

  1. Go to, and select an installation option.

  2. Follow the inline instructions to enable your AMIs (Amazon Machine Instances) until you are presented a link to further instructions on one of the following web pages:  


We welcome comments and feedback about any of our documentation:





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