Documentation/filesystems/orangefs.rst

Source file repositories/reference/linux-study-clean/Documentation/filesystems/orangefs.rst

File Facts

System: Linux kernel
Corpus path: Documentation/filesystems/orangefs.rst
Extension: .rst
Size: 20099 bytes
Lines: 557
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: documentation
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

.. SPDX-License-Identifier: GPL-2.0

========
ORANGEFS
========

OrangeFS is an LGPL userspace scale-out parallel storage system. It is ideal
for large storage problems faced by HPC, BigData, Streaming Video,
Genomics, Bioinformatics.

Orangefs, originally called PVFS, was first developed in 1993 by
Walt Ligon and Eric Blumer as a parallel file system for Parallel
Virtual Machine (PVM) as part of a NASA grant to study the I/O patterns
of parallel programs.

Orangefs features include:

  * Distributes file data among multiple file servers
  * Supports simultaneous access by multiple clients
  * Stores file data and metadata on servers using local file system
    and access methods
  * Userspace implementation is easy to install and maintain
  * Direct MPI support
  * Stateless


Mailing List Archives
=====================

http://lists.orangefs.org/pipermail/devel_lists.orangefs.org/


Mailing List Submissions
========================

devel@lists.orangefs.org


Documentation
=============

http://www.orangefs.org/documentation/

Running ORANGEFS On a Single Server
===================================

OrangeFS is usually run in large installations with multiple servers and
clients, but a complete filesystem can be run on a single machine for
development and testing.

On Fedora, install orangefs and orangefs-server::

    dnf -y install orangefs orangefs-server

There is an example server configuration file in
/etc/orangefs/orangefs.conf.  Change localhost to your hostname if
necessary.

To generate a filesystem to run xfstests against, see below.

There is an example client configuration file in /etc/pvfs2tab.  It is a
single line.  Uncomment it and change the hostname if necessary.  This
controls clients which use libpvfs2.  This does not control the
pvfs2-client-core.

Create the filesystem::

    pvfs2-server -f /etc/orangefs/orangefs.conf

Start the server::

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.
This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.