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Ext3

ext3, or third extended filesystem, is a journaled file system that is commonly used with the Linux kernel. It used to be the default file system for many popular Linux distributions but generally has been supplanted by its successor version ext4. The main advantage of ext3 over its predecessor, ext2, is journaling, which improves reliability and…

History, Disadvantages & Advantages

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Disadvantages

Backward-compatibleExtentsBlock sub-allocationDefragmentationUnofficial patch
17 related topics

Advantages

JFSReiserFSXFSBack upHTree
11 related topics

History

Stephen Tweedie
1 related topics

Ext4

DebianUbuntuTheodore Ts'oBtrfs
4 related topics

Key facts & relationships

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Allowed filename characters
All bytes except NUL ('\0') and '/'
Attributes
allow-undelete, append-only, h-tree (directory), immutable, journal, no-atime, no-dump, secure-delete, synchronous-write, top (directory)
Bad blocks
Table
Data deduplication
No
Date range
December 14, 1901 – January 18, 2038
Date resolution
1 s

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Overview

History

Advantages

Disadvantages

Ext4

Advanced semantic analysis

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Map overview Semantic statistics

Ext3

Nodes46
Edges45
Triples131
Avg. degree1.96
Density0.043478
Components1

How this topic connects Entity context

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Ext3

Top relations

related to External links · 54
Ext3 → Advanced, An, Archived, Art, Badari Pulavarty, Chapter, Commercial, CROSSMETARed Hat Enterprise Linux, Determining Your EXT3 Size, Dr, EXT2 IFS, Ext2 Installable File System, Ext2/Ext3, Ext2/Ext4, Ext2read, EXT3 Journaling Filesystem, ExtBrowser Archived, FAQ, File System For Windows, For Windows
related to ext4 · 10
Ext3 → As, Btrfs, Debian, In, Linux, On June, On October, Theodore Ts'o, Ts'o, Ubuntu
related to Advantages · 8
Ext3 → Benchmarks, CPU, It, JFS, Linux, ReiserFS, The, XFS
related to Functionality · 6
Ext3 → Attempting, Because, Consequently, Linux, On, Where
related to No checksumming in journal · 6
Ext3 → If, Journal, On, The, This, Upon
related to Defragmentation · 5
Ext3 → Defrag, However, If, Shake, There
related to Lack of snapshots support · 4
Ext3 → Instead, Linux LVM, The Next3, Unlike
related to Journaling levels · 3
Ext3 → In, Linux, There
related to Near-time extinction due to date-stamp limitation · 3
Ext3 → January, Unix, Year
related to Undelete · 2
Ext3 → The, There

Important terminology Word statistics

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Important terminology

file system linux ext2 filesystem ext4 write files data journal also used blocks journaling systems cache version defragmentation snapshots support

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Ext3Allowed filename charactersAll bytes except NUL ('\0') and '/'1.00infobox
Ext3Attributesallow-undelete, append-only, h-tree (directory), immutable, journal, no-atime, no-dump, secure-delete, synchronous-write, top (directory)1.00infobox
Ext3Bad blocksTable1.00infobox
Ext3Data deduplicationNo1.00infobox
Ext3Date rangeDecember 14, 1901 – January 18, 20381.00infobox
Ext3Date resolution1 s1.00infobox
Ext3Dates recordedmodification (mtime), attribute modification (ctime), access (atime)1.00infobox
Ext3DeveloperStephen Tweedie1.00infobox
Ext3Directory contentsTable, hashed B-tree with dir_index enabled1.00infobox
Ext3File allocationbitmap (free space), table (metadata)1.00infobox
Ext3File system permissionsUnix permissions, POSIX ACLs and arbitrary security attributes (Linux 2.6 and later)1.00infobox
Ext3Full nameThird extended file system1.00infobox
Ext3IntroducedNovember 2001 with Linux 2.4.151.00infobox
Ext3Max file size16 GiB – 2 TiB1.00infobox
Ext3Max filename length255 bytes1.00infobox
Ext3Max no. of filesVariable, allocated at creation time1.00infobox
Ext3Max volume size4 TiB – 32 TiB1.00infobox
Ext3Partition IDs0x83 (MBR) EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 (GPT)1.00infobox
Ext3Preceded byext21.00infobox
Ext3Succeeded byext41.00infobox
Ext3Supported operating systemsLinux, BSD, ReactOS, Windows (through an IFS)1.00infobox
Ext3Transparent compressionNo1.00infobox
Ext3Transparent encryptionNo (provided at the block device level)1.00infobox

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