Unix permissions, POSIX ACLs and arbitrary security attributes (Linux 2.6 and later)
Transparent compression
No
Transparent encryption
No (provided at the block device level)
Data deduplication
No
Other
Supported operating systems
Linux, BSD, ReactOS,[2] Windows (through an IFS)
ext3, or third extended filesystem, is a journaled file system that is commonly used by the Linux kernel. It used to be the default file system for many popular Linux distributions. Stephen Tweedie first revealed that he was working on extending ext2 in Journaling the Linux ext2fs Filesystem in a 1998 paper, and later in a February 1999 kernel mailing list posting. The filesystem was merged with the mainline Linux kernel in November 2001 from 2.4.15 onward.[3][4][5] Its main advantage over ext2 is journaling, which improves reliability and eliminates the need to check the file system after an unclean shutdown. Its successor is ext4.[6]
^The maximum number of inodes (and hence the maximum number of files and directories) is set when the file system is created. If V is the volume size in bytes, then the default number of inodes is given by V/213 (or the number of blocks, whichever is less), and the minimum by V/223. The default was deemed sufficient for most applications. The max number of subdirectories in one directory is fixed to 32000.
^"ReactOS 0.4.2 Released". reactos.org. Retrieved 17 August 2016.
^Stephen C. Tweedie (May 1998). "Journaling the Linux ext2fs Filesystem" (PDF). Proceedings of the 4th Annual LinuxExpo, Durham, NC. Retrieved 2007-06-23.
^Stephen C. Tweedie (February 17, 1999). "Re: fsync on large files". Linux kernel mailing list.
^Rob Radez (November 23, 2001). "2.4.15-final". Linux kernel mailing list.
^"Chapter 6. The Ext4 File System Red Hat Enterprise Linux 6".
ext3, or third extended filesystem, is a journaled file system that is commonly used by the Linux kernel. It used to be the default file system for many...
EXT3 can refer to: The ext3 journaling filesystem for Linux EXT3 (gene) This disambiguation page lists articles associated with the same title formed as...
Linux, developed as the successor to ext3. ext4 was initially a series of backward-compatible extensions to ext3, many of them originally developed by...
Windows NT/2000/XP/2003 (Read/Write; support for UTF-8 file names and ext3 htree; ext3 journal not supported ) ReiserFS IFS for Windows NT (Read only) Commercial...
Linux distributions, including Debian and Red Hat Linux, until supplanted by ext3, which is almost completely compatible with ext2 and is a journaling file...
called the e2fs programs) is a set of utilities for maintaining the ext2, ext3 and ext4 file systems. Since those file systems are often the default for...
operating system family. It facilitates read and write access to the ext2, ext3 and ext4 file systems. The driver can be installed on Windows 2000, Windows...
Linux, ext2 can be converted to ext3 (and converted back), and ext3 can be converted to ext4 (but not back), and both ext3 and ext4 can be converted to btrfs...
system in Novell's SUSE Linux Enterprise until Novell decided to move to ext3 for future releases on October 12, 2006. ReiserFS version 3.6, now occasionally...
Office Yes No Yes Yes (64 MB) No Yes Yes FAT32, NTFS, HFS+, APFS, ext2, ext3, ext4 and ReiserFS Yes Yes Yes Trialware AOMEI Yes No No No No Yes No No...
with its successor ext3. However, other programs, or filesystem-independent ones such as defragfs, may be used to defragment an ext3 filesystem. ext4 is...
filesystem in 1993, in Apple's HFS Plus filesystem in 1998, and in Linux's ext3 filesystem in 2001. Updating file systems to reflect changes to files and...
overflow across multiple leaf and index blocks. HTree indexes are used in the ext3 and ext4 Linux filesystems, and were incorporated into the Linux kernel around...
the same name. As of version 1.5.3 it can also recover files from Ext2, Ext3 and Ext4 file systems of Linux. As with other file recovery programs Recuva...
digital forensics context. PhotoRec is shipped with TestDisk. FAT, NTFS, ext2/ext3/ext4 file systems store files in data blocks (also called data clusters under...
mkfs -t ext3 /dev/sda1 would call the command mke2fs while passing along the appropriate arguments to format the device /dev/sda1 with the ext3 filesystem...
at the file system level. For ext3 file systems these can be set with the tune2fs command. The normal default for ext3 file systems is equivalent to rw...
December 18, 2011. only i686 CPU Windows can read and write with Ext2 and Ext3 file systems only when a driver from FS-driver or Ext2Fsd is installed. However...
specifically designed for them; for example, NTFS in Windows and ReiserFS, Reiser4, ext3, ext4 and Btrfs in Linux. However, in practice, third party drivers are usually...
filesystem working on performance issues, he led the development of the ext3 filesystem which involved adding a journaling layer (JBD) to the ext2 filesystem...
journaled file systems; and GFS2 supports a similar set of journaling modes as ext3. In data=writeback mode, only metadata is journaled. This is the only mode...
snapshot functionality is invoked. This was once a valuable advantage as the ext3 file system could not be suspended and the volume manager was unable to create...
data blocks. It is also adopted by many related file systems, including the ext3 file system, popular with Linux users. In the past, the structure may have...
file system based on these B-trees. In 2008, the principal developer of the ext3 and ext4 file systems, Theodore Ts'o, stated that although ext4 has improved...
filesystem-independent. ext3, ext4 and OCFS2 are known to use JBD. JBD exists in two versions, JBD and JBD2. JBD was created with ext3 in 1998. JBD2 was forked...
extended file system, designed for Linux systems. ext3 – A journaled form of ext2. ext4 – A follow-up for ext3 and also a journaled filesystem with support...
Global Information