The systems supporting file system extents include the following: •
APFS Apple File System •
ASM Automatic Storage Management
Oracle's database-oriented file system •
BFS BeOS,
Zeta and
Haiku operating systems •
Btrfs Extent-based
copy-on-write (COW) file system for Linux • EFS Extent File System
SGI's first-generation file system for
IRIX •
ext4 Linux file system (when the configuration enables extents the default in Linux since version 2.6.23) •
Files-11 OpenVMS file system •
HFS and
HFS Plus Hierarchical File System
Apple Macintosh file systems •
High Performance File System (HPFS) on
OS/2,
eComStation and
ArcaOS • IceFS IceFileSystem optional file system for
MorphOS •
JFS Journaled File System used by
AIX,
OS/2/eComStation/ArcaOS and
Linux operating systems •
ISO 9660 Extent-based file system for optical disc media • MPE File System the file system of the
Multi-Programming Executive operating system. •
NTFS used by Windows •
OCFS2 Oracle Cluster File System a
shared-disk file system for Linux •
Reiser4 Linux file system (in "extents" mode) •
SINTRAN III file system used by early computer company
Norsk Data •
UDF Universal Disk Format standard for optical media •
VERITAS File System enabled via the pre-allocation API and CLI •
XFS SGI's second-generation file system for
IRIX and
Linux Adoption outside of file systems include the following: •
Microsoft SQL Server versions support 64 KB extents consisting of eight 8 KB pages. •
Oracle Database groups blocks into extents and extents into segments. == See also ==