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GFS2: History, Hardware & Differences from a local filesystem

In computing, the Global File System 2 (GFS2) is a shared-disk file system for Linux computer clusters. GFS2 allows all members of a cluster to have direct concurrent access to the same shared block storage, in contrast to distributed file systems which distribute data throughout the cluster. GFS2 can also be used as a local file system on a single computer.

Language: English [EN]
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GFS2 topic overview

The analysis highlights History, Hardware and Differences from a local filesystem as prominent areas in the source structure around GFS2.

Related topics
46
Source areas
6
Connected nodes
52
Extracted relationships
70
Concept neighborhoods
17
Bridge connections
52

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 13 topics
Hardware · 11 topics
Overview · 9 topics
Differences from a local filesystem · 7 topics
Compatibility and the GFS2 meta filesystem · 3 topics
Journaling · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Allowed filename characters
All except NUL
Attributes
No-atime, journaled data (regular files only), inherit journaled data (directories only), synchronous-write, append-only, immutable, exhash (dirs only, read only)
Bad blocks
No
Data deduplication
across nodes only
Date resolution
Nanosecond
Dates recorded
attribute modification (ctime), modification (mtime), access (atime)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Hardware

Differences from a local filesystem

Journaling

Compatibility and the GFS2 meta filesystem

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How GFS2 connects Entity context

The extracted context around GFS2 shows recurring relationship patterns in the source. For example, GFS2 → Although, AoE, ATA, Depending, DLM, DRBD, Ethernet, Fibre Channel, GFS, IP, Linux, SAN, The, This Another extracted example is GFS2 → ACLs, Compatibility, Configurable, Far, FIEMAP, GFS, Here, I/O, Ordered, SCSI TRIM, Splice, The, XFS-style. Use these groups to spot repeated connection types before inspecting the individual relationships.

GFS2

Top relations

related to Hardware · 14
GFS2 → Although, AoE, ATA, Depending, DLM, DRBD, Ethernet, Fibre Channel, GFS, IP, Linux, SAN, The, This
related to Features of GFS2 compared with GFS · 13
GFS2 → ACLs, Compatibility, Configurable, Far, FIEMAP, GFS, Here, I/O, Ordered, SCSI TRIM, Splice, The, XFS-style
related to Differences from a local filesystem · 8
GFS2 → Although, For, GFS/GFS2, Leases, PID, Since, Some, The
related to External links · 8
GFS2 → Enterprise Linux, GFS Documentation PageGFS Project, Global File System, Hat Cluster Suite, Page Archived, Red Hat Red Hat, The GFS2, Wayback MachineOpenGFS Project Page
related to Journaling · 7
GFS2 → GFS, GFS/GFS2, In, Journaled, The, There, This
related to Compatibility and the GFS2 meta filesystem · 3
GFS2 → GFS, There, To
Allowed filename characters · 1
GFS2 → All except NUL
Attributes · 1
GFS2 → No-atime, journaled data (regular files only), inherit journaled data (directories only), synchronous-write, append-only, immutable, exhash (dirs only, read only)
Bad blocks · 1
GFS2 → No
Data deduplication · 1
GFS2 → across nodes only

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

gfs linux cluster filesystem system lock file also inode data mode metadata files node used red hat shared distributed manager

GFS2 relationships Subject–Predicate–Object triples

TTTA extracted 70 structured relationships around GFS2. Examples in this analysis include GFS2 → Allowed filename characters → All except NUL and GFS2 → Attributes → No-atime, journaled data (regular files only), inherit journaled data (directories only), synchronous-write, append-only, immutable, exhash (dirs only, read only). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
GFS2Allowed filename charactersAll except NUL1.00infobox
GFS2AttributesNo-atime, journaled data (regular files only), inherit journaled data (directories only), synchronous-write, append-only, immutable, exhash (dirs only, read only)1.00infobox
GFS2Bad blocksNo1.00infobox
GFS2Data deduplicationacross nodes only1.00infobox
GFS2Date resolutionNanosecond1.00infobox
GFS2Dates recordedattribute modification (ctime), modification (mtime), access (atime)1.00infobox
GFS2DeveloperRed Hat1.00infobox
GFS2Directory contentsHashed (small directories stuffed into inode)1.00infobox
GFS2File allocationbitmap (resource groups)1.00infobox
GFS2File system permissionsUnix permissions, ACLs and arbitrary security attributes1.00infobox
GFS2Full nameGlobal File System 21.00infobox
GFS2Introduced2005 with Linux 2.6.191.00infobox
GFS2Max filename length255 bytes1.00infobox
GFS2Max no. of filesVariable1.00infobox
GFS2Supported operating systemsLinux1.00infobox
GFS2Transparent compressionNo1.00infobox
GFS2Transparent encryptionNo1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around GFS2 bring nearby vocabulary together. In this analysis, examples include Gfs, Linux and Filesystem. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • GFS2
    • Gfs
    • Linux
    • Filesystem
    • System
    • Hat
    • Red
    • Files
    • Cluster
    • Enterprise
    • Journaled
    • Also
    • Local
  • gfs2
    • Gfs
    • Linux
    • Filesystem
    • System
    • Hat
    • Red
    • Files
    • Cluster
    • Enterprise
    • Journaled
    • Also
    • Local
  • distributed file systems
    • Manager
    • Access
    • File
    • Systems
    • Journaling
    • Dlm
    • Lock
    • Journaled
    • Meta
    • System
    • Regular
    • Storage
  • linux
    • Enterprise
    • Hat
    • Red
    • Supported
    • System
    • Shared
    • Features
    • Storage
    • Systems
    • Distributed
    • Journaling
    • Manager
  • distributed lock manager
    • Manager
    • Dlm
    • Lock
    • Shared
    • Storage
    • Use
    • Linux
    • Supported
    • Gfs2
    • Gfs
    • Used
    • Features
  • cluster
    • Shared
    • File
    • Gfs2
    • Node
    • Lock
    • Fencing
    • Access
    • Local
    • Storage
    • Systems
    • Use
    • Distributed
  • red hat enterprise linux 5.3
    • Red
    • Enterprise
    • Hat
    • Linux
    • Supported
    • Storage
    • System
    • Shared
    • Systems
    • Gfs2
    • Journaling
    • Features
  • journaled file systems
    • Regular
    • Access
    • File
    • Systems
    • Journaling
    • Journaled
    • Support
    • System
    • Meta
    • Use
    • Also
    • Cluster

Connections between topic areas Semantic bridges

For GFS2, one of the stronger structural bridges in this analysis connects GFS2 with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
GFS2 — History · splits 39 ⟂ 14
GFS2 — Hardware · splits 41 ⟂ 12
GFS2 — Overview · splits 43 ⟂ 10
GFS2 — Differences from a local filesystem · splits 45 ⟂ 8
GFS2 — Journaling · splits 49 ⟂ 4
GFS2 — Compatibility and the GFS2 meta filesystem · splits 49 ⟂ 4

Map overview Semantic statistics

GFS2

Nodes53
Edges52
Triples70
Avg. degree1.96
Density0.037736
Components1

Source & methodology

TTTA analyzes the structure around GFS2 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Hardware & Differences from a local filesystem, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — GFS2 · EN edition · Analysis: TopicsToTalkAbout

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