Global File System

From Academic Kids

Global File System (or GFS) is a shared-storage journaled cluster, or distributed file system. It uses either a redundant server locking mechanism (called GULM), or it can use a distributed lock manager (GDLM).

GFS does not belong in the same league as projects such as AFS, Coda, or Intermezzo. It has no client side caching of any sort. By design it talks directly to storage (although that can happen by exporting the storage via GNBD, iSCSI, etc.). GFS has no concept of client and server: only raw storage and mounters exist.

Contents

History

GFS originally developed as a part of a thesis project at the University of Minnesota. At some point it made its way to Sistina Software, where it lived for a time as an open source project. Sometime in 2001 Sistina made the choice to make GFS a commercial product -- not under an open source license. OpenGFS forked from the last public release of GFS. In December 2003 Red Hat purchased Sistina.

In late June 2004, Red Hat released GFS and many cluster infrastructure pieces under the GPL. Red Hat's current goal for the project (aside from the normal bug fixing and stabilization) envisages inclusion in the mainline Linux kernel.

External links

Background

  • Symmetric Cluster Architecture (http://people.redhat.com/~teigland/sca.pdf) -- paper (pdf) describing gfs and future development
  • http://www.diku.dk/undervisning/2003e/314/papers/soltis97global.pdf -- a good paper about the technical background of GFS and how it compares to other network filesystems
  • Old but still useful GFS 5.1.1 user manual: pdf (http://home.postech.ac.kr/~salesian/cs499/pds/GFS_User_Manual.pdf), html (http://216.239.59.104/search?q=cache:XMoxshOAZ2UJ:home.postech.ac.kr/~salesian/cs499/pds/GFS_User_Manual.pdf)

Documentation (https://open.datacore.ch/page/GFS)

Related projects

  • Alternate implementation (http://opengfs.sourceforge.net/) of GFS, forked when Sistina closed the source a while ago. Has undergone further development and incorporates recent updates allowing it to work with OpenDLM (http://opendlm.sourceforge.net).
Navigation

Academic Kids Menu

  • Art and Cultures
    • Art (http://www.academickids.com/encyclopedia/index.php/Art)
    • Architecture (http://www.academickids.com/encyclopedia/index.php/Architecture)
    • Cultures (http://www.academickids.com/encyclopedia/index.php/Cultures)
    • Music (http://www.academickids.com/encyclopedia/index.php/Music)
    • Musical Instruments (http://academickids.com/encyclopedia/index.php/List_of_musical_instruments)
  • Biographies (http://www.academickids.com/encyclopedia/index.php/Biographies)
  • Clipart (http://www.academickids.com/encyclopedia/index.php/Clipart)
  • Geography (http://www.academickids.com/encyclopedia/index.php/Geography)
    • Countries of the World (http://www.academickids.com/encyclopedia/index.php/Countries)
    • Maps (http://www.academickids.com/encyclopedia/index.php/Maps)
    • Flags (http://www.academickids.com/encyclopedia/index.php/Flags)
    • Continents (http://www.academickids.com/encyclopedia/index.php/Continents)
  • History (http://www.academickids.com/encyclopedia/index.php/History)
    • Ancient Civilizations (http://www.academickids.com/encyclopedia/index.php/Ancient_Civilizations)
    • Industrial Revolution (http://www.academickids.com/encyclopedia/index.php/Industrial_Revolution)
    • Middle Ages (http://www.academickids.com/encyclopedia/index.php/Middle_Ages)
    • Prehistory (http://www.academickids.com/encyclopedia/index.php/Prehistory)
    • Renaissance (http://www.academickids.com/encyclopedia/index.php/Renaissance)
    • Timelines (http://www.academickids.com/encyclopedia/index.php/Timelines)
    • United States (http://www.academickids.com/encyclopedia/index.php/United_States)
    • Wars (http://www.academickids.com/encyclopedia/index.php/Wars)
    • World History (http://www.academickids.com/encyclopedia/index.php/History_of_the_world)
  • Human Body (http://www.academickids.com/encyclopedia/index.php/Human_Body)
  • Mathematics (http://www.academickids.com/encyclopedia/index.php/Mathematics)
  • Reference (http://www.academickids.com/encyclopedia/index.php/Reference)
  • Science (http://www.academickids.com/encyclopedia/index.php/Science)
    • Animals (http://www.academickids.com/encyclopedia/index.php/Animals)
    • Aviation (http://www.academickids.com/encyclopedia/index.php/Aviation)
    • Dinosaurs (http://www.academickids.com/encyclopedia/index.php/Dinosaurs)
    • Earth (http://www.academickids.com/encyclopedia/index.php/Earth)
    • Inventions (http://www.academickids.com/encyclopedia/index.php/Inventions)
    • Physical Science (http://www.academickids.com/encyclopedia/index.php/Physical_Science)
    • Plants (http://www.academickids.com/encyclopedia/index.php/Plants)
    • Scientists (http://www.academickids.com/encyclopedia/index.php/Scientists)
  • Social Studies (http://www.academickids.com/encyclopedia/index.php/Social_Studies)
    • Anthropology (http://www.academickids.com/encyclopedia/index.php/Anthropology)
    • Economics (http://www.academickids.com/encyclopedia/index.php/Economics)
    • Government (http://www.academickids.com/encyclopedia/index.php/Government)
    • Religion (http://www.academickids.com/encyclopedia/index.php/Religion)
    • Holidays (http://www.academickids.com/encyclopedia/index.php/Holidays)
  • Space and Astronomy
    • Solar System (http://www.academickids.com/encyclopedia/index.php/Solar_System)
    • Planets (http://www.academickids.com/encyclopedia/index.php/Planets)
  • Sports (http://www.academickids.com/encyclopedia/index.php/Sports)
  • Timelines (http://www.academickids.com/encyclopedia/index.php/Timelines)
  • Weather (http://www.academickids.com/encyclopedia/index.php/Weather)
  • US States (http://www.academickids.com/encyclopedia/index.php/US_States)

Information

  • Home Page (http://academickids.com/encyclopedia/index.php)
  • Contact Us (http://www.academickids.com/encyclopedia/index.php/Contactus)

  • Clip Art (http://classroomclipart.com)
Toolbox
Personal tools