View source for OpenAFS

{{Short description|Open-source Andrew distributed file system implementation}}
{{Multiple issues|
{{Refimprove|date=July 2022}}
{{Third-party|date=October 2023}}
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{{Infobox software
| name = OpenAFS
| author = [[Carnegie Mellon University]]
| developer = [[Transarc]], [[IBM]], OpenAFS Foundation
| latest release version = 1.8.13
| latest release date = {{Start date and age|2024|11|12}}
| operating system = [[Cross-platform]]
| programming language = [[C (programming language)|C]]
| genre = [[Distributed file system|Distributed File System]]
| license = [[IBM Public License]]
| website = {{URL|www.openafs.org}}
}}
'''OpenAFS''' is an [[open-source software|open-source]] implementation of the [[Andrew File System|Andrew]] [[distributed file system]] (AFS). AFS was originally developed at [[Carnegie Mellon University]], and developed as a commercial product by the [[Transarc]] Corporation, which was subsequently acquired by [[IBM]]. At ''LinuxWorld'' on 15 August 2000, IBM announced<ref>[https://web.archive.org/web/20080223002706/http://www-128.ibm.com/developerworks/opensource/library/os-afs.html os-afs] archived</ref> their plans to release a version of their commercial AFS product under the [[IBM Public License]]. This became OpenAFS. Today, OpenAFS is actively developed for a wide range of operating system families including: [[AIX operating system|AIX]], [[Mac OS X]], [[Darwin (operating system)|Darwin]], [[HP-UX]], [[Irix]], [[Solaris (operating system)|Solaris]], [[Linux]], [[Microsoft Windows]], [[FreeBSD]], [[NetBSD]].

== Foundation ==
The [http://www.openafsfoundation.org/ OpenAFS Foundation] was established on May 20, 2013 as a non-profit organization dedicated to fostering the stability and growth of OpenAFS.

==Governance==
Governance of the project is split between the board of elders who consider issues of strategic direction, and the gatekeepers who control the source repository.

==Licensing==
Although there is no legal entity that owns the OpenAFS source code, copyright on many files is attributed to IBM.  Most of the source is covered by the IPL, however several files in the tree are covered by university [[vanity license]]s.  All applicable licenses are listed in a file in the source repository called [https://web.archive.org/web/20160303220409/http://git.openafs.org/?p=openafs.git%3Ba%3Dblob%3Bf%3Ddoc%2FLICENSE openafs/doc/LICENSE].

==Development==
The [http://www.openafs.org/credits.html contributors] over the last five years{{when|date=March 2020}} have made [http://lists.openafs.org/pipermail/openafs-announce/2005/000129.html significant improvements] to both the implementation and the AFS3 protocol without breaking interoperability with the IBM/Transarc releases.  Since that announcement was written, several large development projects have been integrated, such as: 64-bit MS-Windows support, MS-Windows 7 support, Apple-Mac OS X v10.4-v10.9 support, and the [http://workshop.openafs.org/afsbpw06/talks/tkeiser-dafs.pdf demand attach fileserver].

Many development projects are at various stages of completion.  The following are several prominent examples:

* Fileserver back-end utilizing object storage
* [http://workshop.openafs.org/afsbpw06/talks/kenh-rxtcp.pdf rxtcp]
* [http://workshop.openafs.org/afsbpw07/talks/lha.pdf rxgk]
* rxk5
* [http://workshop.openafs.org/afsbpw07/talks/tkeiser.pdf Instrumentation framework]
* [http://workshop.openafs.org/afsbpw07/talks/matt.pdf Byte-range locking support]

==Deployment==
The existing user base includes small single server cells as well as large multinational deployments spanning academia, private research laboratories, government, and commercial entities.  A small snapshot of the deployed AFS cells can be found by reviewing the contents of the [http://dl.central.org/dl/cellservdb/CellServDB CellServDB] file distributed with OpenAFS.

==References==
{{Reflist}}

==External links==
{{Portal|Free and open-source software}}
*[http://www.openafs.org OpenAFS website]
*[http://wiki.openafs.org AFS Wiki]

{{File systems}}
{{IBM FOSS}}

[[Category:Network file systems]]
[[Category:Free network-related software]]
[[Category:IBM software]]
[[Category:File systems supported by the Linux kernel]]