OpenSFS

OpenSFS, short for Open Scalable File Systems, Inc., is a nonprofit organization established in 2010 to help preserve and develop Lustre as an open, freely available, and vendor-neutral parallel file system. Its role emerged from uncertainty about the future governance of Lustre after Oracle acquired Sun Microsystems, which had previously acquired the assets of Cluster File Systems, the original developer associated with Lustre. OpenSFS was created as a community-oriented steward for the technology, bringing together commercial suppliers and national-laboratory users of high-performance computing. Lustre is designed for high-performance parallel input and output and is used in computational data centers, including systems appearing on the TOP500 list of the world's most powerful supercomputers. Rather than operating primarily as a conventional software vendor, OpenSFS coordinates the broader ecosystem around Lustre. Its activities have included endorsing community releases, directly funding feature and maintenance work, soliciting development proposals, supporting technical working groups, and organizing user events. The organization was founded in October 2010 by Cray, DataDirect Networks, Lawrence Livermore National Laboratory, and Oak Ridge National Laboratory. Its formation followed the departure of many Lustre developers from Oracle and concerns that Oracle's strategic decisions could weaken the project's open-source development model. OpenSFS therefore positioned itself around continuity, community participation, and independence from any single commercial vendor. OpenSFS endorsed Lustre 2.1 in 2011 as its first community release and began directly funding community release work in early 2012. Its development planning generally targeted feature releases approximately every six months and maintenance releases approximately every three months. Among the work associated with its program was Lustre 2.5, released in 2013 with integration capabilities for hierarchical storage management. The project later adopted a long-term-support approach, with Lustre 2.10 identified in 2017 as the first LTS release and Lustre 2.12 announced as the next LTS release at the 2018 Supercomputing conference. OpenSFS also became responsible for the annual Lustre User Group event, commonly known as LUG. The event provides a forum for technical presentations, seminars, user experience, and discussion of the future direction of Lustre. In 2020, pandemic-related restrictions on travel and in-person gatherings led the organization to replace the regular LUG meeting with a webinar series. Governance evolved over the organization's first decade. Norman Morse served as chief executive officer from the founding until resigning in 2013, when Galen Shipman of Oak Ridge National Laboratory succeeded him. Charlie Carrol of Cray became chairman in 2015. By 2016, stewardship had shifted from the remaining board members representing Cray, Intel, and Seagate toward a more user-driven organizational model. Stephen Simms served as interim president during the transition, returned to a permanent leadership role after the 2019 elections, and became associated with the organization's continuing community-governance structure. OpenSFS's principal significance lies in its role as an institutional platform for coordinating Lustre users, developers, laboratories, and vendors rather than in consumer-facing branding or commercial product sales.

Lustre originated in the high-performance-computing community. Development began in 1999 through the Accelerated Strategic Computing Initiative Path Forward project, and an initial release followed in 2003. The system was designed as a parallel file system capable of serving large computational workloads across clusters and data-center systems. In September 2007, Sun Microsystems acquired the assets of Cluster File Systems, the company connected with Lustre's early development. Sun was subsequently acquired by Oracle Corporation in 2010. Statements and strategic signals from Oracle before and during the 2010 Lustre User Group created concern that Lustre might no longer receive the same level of open-source development or community support. Many Lustre developers consequently left Oracle. OpenSFS was founded in October 2010 in response to that governance uncertainty. Its founding members were Cray, DataDirect Networks, Lawrence Livermore National Laboratory, and Oak Ridge National Laboratory. The organization's stated purpose was to maintain Lustre as open, free, and vendor-neutral while providing a structure through which users, laboratories, developers, and commercial participants could coordinate work. The organization endorsed Lustre 2.1 in 2011 as its first community release. Beginning in early 2012, OpenSFS directly funded community-release development. Its planning model distinguished between feature releases, generally targeted every six months, and maintenance releases, generally targeted every three months. In February 2013 it invited proposals for new Lustre functionality, parallel-file-system tools, solutions to technical issues, and experimental parallel-file-system projects. Leadership also changed during this period. Norman Morse, who had served as chief executive officer since the organization's creation, resigned in April 2013 and was replaced by Galen Shipman of Oak Ridge National Laboratory. Charlie Carrol of Cray became chairman in 2015. At the 2016 Supercomputing conference, Stephen Simms announced that stewardship was being transferred from the remaining board members associated with Cray, Intel, and Seagate toward a more user-driven organization. Simms served as interim president while the new governance process developed, with board elections planned at the 2017 Lustre User Group. After later elections at the 2019 LUG, he returned to the presidency in a permanent capacity. OpenSFS-funded development included Lustre 2.5, released in October 2013 with capability for integration between Lustre and hierarchical storage management. The project subsequently moved toward a long-term-support release model. In 2017, Lustre 2.10 was identified as the first LTS release, and at SC18 in 2018 the community announced Lustre 2.12 as the next LTS version. Technical matters concerning community releases are discussed through the OpenSFS Lustre Working Group. OpenSFS has also played an organizational role in user education and coordination. Since 2011 it has been responsible for organizing the annual Lustre User Group, normally held in April or May. The event provides presentations, seminars, and discussion for people deploying or developing Lustre. The 2020 event was converted into a webinar series because of restrictions on travel and group meetings during the COVID-19 pandemic. Through these activities, OpenSFS functions less as a conventional commercial brand than as a nonprofit governance and coordination body supporting a widely used open-source storage platform.

• 2020

  Lustre User Group becomes a webinar series

  [1]OpenSFSen.wikipedia.org

  The annual in-person user event is replaced by webinars because of pandemic-related travel and gathering restrictions.

• 2017

  Lustre adopts LTS planning

  [1]OpenSFSen.wikipedia.org

  Lustre 2.10 is identified as the first release in a long-term-support model.

• 2013

  Lustre 2.5 released

  [1]OpenSFSen.wikipedia.org

  The OpenSFS-funded release includes capability for Lustre and hierarchical storage management integration.

• 2011

  First OpenSFS-endorsed community release

  [1]OpenSFSen.wikipedia.org

  Lustre 2.1 becomes the first community release endorsed by OpenSFS.

• 2010

  OpenSFS is founded

  [1]OpenSFSen.wikipedia.org

  OpenSFS is established in October to support an open and vendor-neutral Lustre community.

• 2007

  Sun Microsystems acquires Cluster File Systems assets

  [1]OpenSFSen.wikipedia.org

  Sun Microsystems acquires the assets associated with Cluster File Systems and its Lustre development work.

• 2003

  Initial Lustre release

  [1]OpenSFSen.wikipedia.org

  The first Lustre release becomes available for high-performance computing use.

• 1999

  Lustre development begins

  [1]OpenSFSen.wikipedia.org

  Lustre development starts under the Accelerated Strategic Computing Initiative Path Forward project.

A nonprofit, community-governed steward for open-source Lustre development, emphasizing vendor neutrality, interoperability, high-performance computing, and long-term project continuity.

• Parallel file system · 2003

  Lustre

  Lustre is an open-source, high-performance parallel file system intended for large-scale clustered computing and computational data centers. It distributes storage and input/output activity across systems to support demanding workloads, including scientific and technical computing. OpenSFS does not present Lustre as a conventional proprietary product; instead, it supports the community process around releases, feature development, maintenance, and long-term support.

• Open-source software releases · 2011

  Lustre community releases

  OpenSFS endorses and funds community-oriented Lustre releases. The program has included feature development, maintenance work, technical improvements, tools, and integration capabilities such as the hierarchical-storage-management work associated with Lustre 2.5. Release planning later incorporated long-term-support versions for users requiring greater stability and extended maintenance.

• Technical conference and community program · 2011

  Lustre User Group

  The Lustre User Group is OpenSFS's recurring community event for users, developers, vendors, and researchers. It combines technical presentations, seminars, deployment experience, and discussion of Lustre's future. The regular in-person format was replaced by a webinar series in 2020 because of pandemic-related restrictions.

• 2020

  Move the 2020 Lustre User Group onlineOther

  Background

  COVID-19-related restrictions limited travel and in-person gatherings.

  Action taken

  OpenSFS replaced the regular 2020 LUG meeting with a webinar series.

  Aftermath

  The change allowed community presentations and discussion to continue without the usual physical event.

  Source

• 2017

  Adopt a long-term-support release modelGeneration change

  Background

  Large-scale computing users often require stable software versions and extended maintenance periods.

  Action taken

  The Lustre community adopted an LTS approach, designating Lustre 2.10 as the first long-term-support release.

  Aftermath

  Lustre 2.12 was subsequently announced as the next LTS release at SC18.

  Source

• 2012

  Directly fund community release developmentStrategy

  Background

  OpenSFS sought a predictable mechanism for advancing Lustre features and maintaining the community codebase.

  Action taken

  The organization began funding community releases, with feature work generally targeted every six months and maintenance releases approximately every three months.

  Aftermath

  The funding model supported later releases and proposal-based work across features, tools, technical fixes, and incubator projects.

  Source

• 2010

  Create an independent Lustre stewardship organizationStrategy

  Background

  Oracle's acquisition of Sun Microsystems and uncertainty about continued open-source Lustre development led developers and users to seek a community-centered governance structure.

  Action taken

  OpenSFS was formed to coordinate an open, free, and vendor-neutral Lustre ecosystem.

  Aftermath

  The organization became a platform for community releases, development funding, working groups, and user events.

  Source

1. 1OpenSFSen.wikipedia.org