The following tables compare general and technical information for a number of file systems.
File system | Stores file owner | POSIX file permissions | Creation timestamps | Last access/ read timestamps | Last metadata change timestamps | Last archive timestamps | Access control lists | Security/ MAC labels | Extended attributes/ Alternate data streams/ forks | Metadata checksum/ ECC | File system | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Bcachefs | Bcachefs | |||||||||||
BeeGFS | BeeGFS | |||||||||||
CP/M file system | CP/M file system | |||||||||||
DECtape[8] | DECtape | |||||||||||
Elektronika BK tape format | Elektronika BK | |||||||||||
Level-D | (date only) | (FILDAE) | Level-D | |||||||||
RT-11[9] | (date only) | RT-11 | ||||||||||
Version 6 Unix file system (V6FS)[10] | Version 6 Unix file system (V6FS) | |||||||||||
Version 7 Unix file system (V7FS)[11] | Version 7 Unix file system (V7FS) | |||||||||||
exFAT | exFAT | |||||||||||
FAT12/FAT16/FAT32 | FAT12/FAT16/FAT32 | |||||||||||
HPFS | HPFS | |||||||||||
NTFS | NTFS | |||||||||||
ReFS | ReFS | |||||||||||
HFS | HFS | |||||||||||
HFS Plus | HFS Plus | |||||||||||
FFS | FFS | |||||||||||
UFS1 | UFS1 | |||||||||||
UFS2 | UFS2 | |||||||||||
HAMMER | HAMMER | |||||||||||
LFS | LFS | |||||||||||
ext | ext | |||||||||||
Xiafs | Xiafs | |||||||||||
ext2 | ext2 | |||||||||||
ext3 | ext3 | |||||||||||
ext4 | ext4 | |||||||||||
NOVA | NOVA | |||||||||||
Lustre | Lustre | |||||||||||
F2FS | F2FS | |||||||||||
GPFS | GPFS | |||||||||||
GFS | GFS | |||||||||||
NILFS | NILFS | |||||||||||
ReiserFS | ReiserFS | |||||||||||
Reiser4 | Reiser4 | |||||||||||
OCFS | OCFS | |||||||||||
OCFS2 | OCFS2 | |||||||||||
XFS | XFS | |||||||||||
JFS | JFS | |||||||||||
QFS | QFS | |||||||||||
BFS | BFS | |||||||||||
AdvFS | AdvFS | |||||||||||
NSS | NSS | |||||||||||
NWFS | NWFS | |||||||||||
ODS-5 | ODS-5 | |||||||||||
APFS | APFS | |||||||||||
VxFS | VxFS | |||||||||||
UDF | UDF | |||||||||||
Fossil | Fossil | |||||||||||
ZFS | ZFS | |||||||||||
Btrfs | Btrfs | |||||||||||
Minix V1 | Minix V1 | |||||||||||
Minix V2 | Minix V2 | |||||||||||
Minix V3 | Minix V3 | |||||||||||
VMFS2 | VMFS2 | |||||||||||
VMFS3 | VMFS3 | |||||||||||
Rock Ridge | Rock Ridge | |||||||||||
Joliet ("CDFS") | Joliet ("CDFS") | |||||||||||
High Sierra | High Sierra | |||||||||||
SquashFS | SquashFS | |||||||||||
BlueStore/Cephfs | BlueStore/Cephfs | |||||||||||
File system | Stores file owner | POSIX file permissions | Creation timestamps | Last access/read timestamps | Last metadata change timestamps | Last archive timestamps | Access control lists | Security/ MAC labels | Extended attributes/ Alternate data streams/ forks | Metadata checksum/ ECC | File system |
File system | Hard links | Symbolic links | Block journaling | Metadata-only journaling | Case-sensitive | Case-preserving | File Change Log | XIP | Resident files (inline data) | |
---|---|---|---|---|---|---|---|---|---|---|
DECtape | ||||||||||
BeeGFS | ||||||||||
Level-D | ||||||||||
RT-11 | ||||||||||
APFS | ||||||||||
Version 6 Unix file system (V6FS) | ||||||||||
Version 7 Unix file system (V7FS) | ||||||||||
exFAT | (with TexFAT only) | |||||||||
FAT12 | (with TFAT12 only) | (with VFAT LFNs only) | ||||||||
FAT16 / FAT16B / FAT16X | (with TFAT16 only) | (with VFAT LFNs only) | ||||||||
FAT32 / FAT32X | ? | (with TFAT32 only) | (with VFAT LFNs only) | |||||||
GFS | ||||||||||
HPFS | ||||||||||
NTFS | (2000) | (approximately 700 bytes) | ||||||||
HFS Plus | [12] | |||||||||
FFS | ||||||||||
UFS1 | ||||||||||
UFS2 | [13] | |||||||||
HAMMER | ||||||||||
LFS | ||||||||||
ext | ||||||||||
Xiafs | ||||||||||
ext2 | ||||||||||
ext3 | (2001) | (2001) | ||||||||
ext4 | , optional [14] | (approximately 160 bytes)[15] | ||||||||
NOVA | ||||||||||
F2FS | ||||||||||
Lustre | ||||||||||
NILFS | ||||||||||
ReiserFS | ||||||||||
Reiser4 | ||||||||||
OCFS | ||||||||||
OCFS2 | ||||||||||
XFS | ||||||||||
JFS | (1990) | |||||||||
QFS | ||||||||||
BFS | ||||||||||
NSS | ||||||||||
NWFS | ||||||||||
ODS-2 | ||||||||||
ODS-5 | ||||||||||
UDF | [16] | |||||||||
VxFS | ||||||||||
Fossil | ||||||||||
ZFS | (112 bytes)[17] | |||||||||
Btrfs | ||||||||||
Bcachefs | ||||||||||
Minix V1 | ||||||||||
Minix V2 | ||||||||||
Minix V3 | ||||||||||
VMFS2 | ||||||||||
VMFS3 | ||||||||||
ReFS | ||||||||||
ISO 9660 | ||||||||||
Rock Ridge | ||||||||||
Joliet ("CDFS") | ||||||||||
SquashFS | ||||||||||
BlueStore/Cephfs | ||||||||||
File system | Hard links | Symbolic links | Block journaling | Metadata-only journaling | Case-sensitive | Case-preserving | File Change Log | XIP | Resident files |
Note that in addition to the below table, block capabilities can be implemented below the file system layer in Linux (LVM,, cryptsetup) or Windows (Volume Shadow Copy Service, SECURITY), etc.
File system | Internal snapshotting / branching | Encryption | Deduplication | Data checksum/ ECC | Persistent Cache | Multiple Devices | Compression | Self-healing | |
---|---|---|---|---|---|---|---|---|---|
DECtape | |||||||||
BeeGFS | |||||||||
Level-D | |||||||||
RT-11 | |||||||||
APFS | [18] | ||||||||
Version 6 Unix file system (V6FS) | |||||||||
Version 7 Unix file system (V7FS) | |||||||||
exFAT | |||||||||
FAT12 | |||||||||
FAT16 / FAT16B / FAT16X | |||||||||
FAT32 / FAT32X | |||||||||
GFS | |||||||||
HPFS | |||||||||
NTFS | [19] | ||||||||
HFS Plus | |||||||||
FFS | |||||||||
UFS1 | |||||||||
UFS2 | |||||||||
HAMMER | |||||||||
LFS | |||||||||
ext | |||||||||
Xiafs | |||||||||
ext2 | |||||||||
ext3 | |||||||||
ext4 | , experimental [20] | ||||||||
NOVA | |||||||||
F2FS | , experimental [21] | ||||||||
Lustre | |||||||||
NILFS | , continuous | ||||||||
ReiserFS | |||||||||
Reiser4 | |||||||||
OCFS | |||||||||
OCFS2 | |||||||||
XFS | [22] | [23] | |||||||
JFS | only in JFS1 on AIX[24] | ||||||||
QFS | |||||||||
BFS | |||||||||
NSS | |||||||||
NWFS | |||||||||
ODS-2 | |||||||||
ODS-5 | |||||||||
UDF | |||||||||
VxFS | |||||||||
Fossil | |||||||||
ZFS | |||||||||
Btrfs | |||||||||
Bcachefs | |||||||||
Minix V1 | |||||||||
Minix V2 | |||||||||
Minix V3 | |||||||||
VMFS2 | |||||||||
VMFS3 | |||||||||
ReFS | |||||||||
ISO 9660 | |||||||||
Rock Ridge | |||||||||
Joliet ("CDFS") | |||||||||
SquashFS | |||||||||
BlueStore/Cephfs | |||||||||
File system | Internal snapshotting / branching | Encryption | Deduplication | Data checksum/ ECC | Persistent Cache | Multiple Devices | Compression | Self-healing |
"Online" and "offline" are synonymous with "mounted" and "not mounted".
File system | Host OS | Offline grow | Online grow | Offline shrink | Online shrink | Add and remove physical volumes | |
---|---|---|---|---|---|---|---|
FAT16 / FAT16B / FAT16X | misc. | ||||||
FAT32 / FAT32X | misc. | ||||||
exFAT | misc. | ||||||
NTFS | Windows | ||||||
ReFS | Windows | ||||||
HFS | macOS | ||||||
HFS+ | macOS | ||||||
APFS | macOS | ||||||
SquashFS | Linux | ||||||
NOVA | Linux | ||||||
JFS[25] | Linux | ||||||
XFS[26] | Linux | [27] | |||||
Lustre[28] | Linux | ||||||
F2FS[29] | Linux | ||||||
NTFS[30] | Linux | ||||||
ext2 | Linux | ||||||
ext3 | Linux | ||||||
ReiserFS[31] | Linux | ||||||
Reiser4[32] | Linux | ||||||
ext4 | Linux | ||||||
Btrfs[33] | Linux | ||||||
Bcachefs | Linux | ||||||
NILFS[34] | Linux | ||||||
ZFS | misc. | [35] | |||||
JFS2 | AIX | ||||||
UFS2[36] | FreeBSD | (FreeBSD 10.0-RELEASE or later) | |||||
HAMMER | DragonflyBSD | ||||||
BlueStore/Cephfs | Linux |
File system | Sparse files | Block suballocation | Tail packing | Extents | Variable file block size | Allocate-on-flush | Copy on write | Trim support | |
---|---|---|---|---|---|---|---|---|---|
DECtape | |||||||||
BeeGFS | |||||||||
Level-D | |||||||||
APFS | [37] [38] | ||||||||
Version 6 Unix file system (V6FS) | |||||||||
Version 7 Unix file system (V7FS) | |||||||||
exFAT | (only if the file fits into one contiguous block range) | (Linux) | |||||||
FAT12 | (only inside of compressed volumes) | (only inside of Stacker 3/4 and DriveSpace 3 compressed volumes) | (only inside of compressed volumes) | (Linux) | |||||
FAT16 / FAT16B / FAT16X | (only inside of compressed volumes)[39] | (only inside of Stacker 3/4 and DriveSpace 3 compressed volumes) | (only inside of compressed volumes)[40] | (Linux) | |||||
FAT32 / FAT32X | (Linux) | ||||||||
GFS | |||||||||
HPFS | (Linux) | ||||||||
NTFS | (NT 6.1+; Linux) | ||||||||
HFS Plus | (macOS) | ||||||||
FFS | 8:1 | ||||||||
UFS1 | 8:1 | ||||||||
UFS2 | 8:1 | [41] [42] | |||||||
LFS | 8:1 | ||||||||
ext | |||||||||
Xiafs | |||||||||
ext2 | |||||||||
ext3 | |||||||||
ext4 | |||||||||
NOVA | |||||||||
F2FS | [43] | ||||||||
Lustre | |||||||||
NILFS | (Linux NILFS2) | ||||||||
ReiserFS | |||||||||
Reiser4 | [44] | ||||||||
OCFS | |||||||||
OCFS2 | (Linux) | ||||||||
XFS | , on request[45] | (Linux) | |||||||
JFS | (Linux) | ||||||||
QFS | |||||||||
BFS | (Haiku) | ||||||||
NSS | |||||||||
NWFS | |||||||||
ODS-5 | |||||||||
VxFS | |||||||||
UDF | , for write once read many media | ||||||||
Fossil | |||||||||
ZFS | |||||||||
Btrfs | |||||||||
Bcachefs | |||||||||
VMFS2 | |||||||||
VMFS3 | |||||||||
ReFS | (NT 6.1+) | ||||||||
ISO 9660 | |||||||||
Rock Ridge | |||||||||
Joliet ("CDFS") | |||||||||
SquashFS | |||||||||
BlueStore/Cephfs | |||||||||
File system | Sparse files | Block suballocation | Tail packing | Extents | Variable file block size | Allocate-on-flush | Copy on write | Trim support |
File system | DOS | Linux | macOS | Windows 9x (historic) | Windows (current) | Classic Mac OS | FreeBSD | OS/2 | BeOS | Minix | Solaris | z/OS | Android | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
APFS | (read-only with apfs-fuse[47] or linux-apfs[48]) | (Since macOS Sierra) | ||||||||||||
BeeGFS | ||||||||||||||
DECtape | ||||||||||||||
Level-D | ||||||||||||||
RT-11 | ||||||||||||||
Version 6 Unix file system (V6FS) | ||||||||||||||
Version 7 Unix file system (V7FS) | ||||||||||||||
exFAT | (since 5.4,[49] available as a kernel module or FUSE driver for earlier versions) | (available as a FUSE driver) | (available as a FUSE driver) | |||||||||||
FAT12 | (via dosdir, dosread, doswrite) | |||||||||||||
FAT16 / FAT16B / FAT16X | (FAT16 from DOS 3.0, FAT16B from DOS 3.31, FAT16X from DOS 7.0) | (via dosdir, dosread, doswrite, not FAT16X) | ||||||||||||
FAT32 / FAT32X | (from DOS 7.10) | (from Windows 95 OSR2) | ||||||||||||
GFS | ||||||||||||||
HPFS | (with third-party drivers) | (from OS/2 1.2) | ||||||||||||
NTFS | (with third-party drivers) | Native since Linux Kernel 5.15 NTFS3. Older kernels may use backported NTFS3 driver or ntfs-3g[50] | 3rd-party drivers like Paragon NTFS for Win98, DiskInternals NTFS Reader | with ntfs-3g | with ntfs-3g | with ntfs-3g | ||||||||
Apple HFS | write support since Mac OS X 10.6 and no support at all since macOS 10.15 | Paragon HFS+ [51] | ||||||||||||
Apple HFS Plus | - writing support only to unjournalled FS | Paragon HFS+ | from Mac OS 8.1 | |||||||||||
FFS | ||||||||||||||
UFS1 | - read only | (with ufs2tools, read only) | ||||||||||||
UFS2 | (with ufs2tools, read only) | |||||||||||||
LFS | ||||||||||||||
ext | - until 2.1.20 | |||||||||||||
Xiafs | - until 2.1.20 Experimental port available to 2.6.32 and later [52] [53] | |||||||||||||
ext2 | Paragon ExtFS [54] or ext2fsx | (read-only, with explore2fs)[55] | Paragon ExtFS [56] or partial with Ext2 IFS[57] or ext2fsd[58] | |||||||||||
ext3 | Paragon ExtFS or partial with ext2fsx (journal not updated on writing) | (read-only, with explore2fs) | Paragon ExtFS or partial with Ext2 IFS or ext2fsd | (read only) | [59] | |||||||||
ext4 | Paragon ExtFS | , with the optional WSL2; physical and VHDX virtual disks.[60] [61] | since FreeBSD 12.0 | |||||||||||
NOVA | ||||||||||||||
Lustre | [62] | |||||||||||||
NILFS | as an external kernel module | |||||||||||||
F2FS | ||||||||||||||
ReiserFS | - Read Only from 6.0 to 10.x[63] and dropped in 11.0[64] [65] | |||||||||||||
Reiser4 | with a kernel patch | |||||||||||||
SpadFS | ||||||||||||||
OCFS | ||||||||||||||
OCFS2 | ||||||||||||||
XFS | ||||||||||||||
JFS | ||||||||||||||
QFS | - client only[66] | |||||||||||||
Be File System | - read-only | |||||||||||||
NSS | via EVMS | |||||||||||||
NWFS | (with Novell drivers) | |||||||||||||
ODS-2 | ||||||||||||||
ODS-5 | ||||||||||||||
UDF | ||||||||||||||
VxFS | ||||||||||||||
Fossil | ||||||||||||||
ZFS | with FUSE[67] or as an external kernel module[68] | with Read/Write Developer Preview[69] | [70] | |||||||||||
Btrfs | with WinBtrfs[71] | |||||||||||||
Bcachefs | ||||||||||||||
VMFS2 | ||||||||||||||
VMFS3 | ||||||||||||||
IBM HFS | ||||||||||||||
IBM zFS | ||||||||||||||
ReFS | Paragon ReFS for Linux | |||||||||||||
ISO 9660 | ||||||||||||||
Rock Ridge | ||||||||||||||
Joliet ("CDFS") | ||||||||||||||
SquashFS | (There are ports of unsquashfs and mksquashfs.) | (There are ports of unsquashfs and mksquashfs.) | (There are ports of unsquashfs and mksquashfs and fusefs-port.[72] [73]) | |||||||||||
BlueStore/Cephfs | ||||||||||||||
File system | DOS | Linux | macOS | Windows 9x (historic) | Windows (current) | Classic Mac OS | FreeBSD | OS/2 | BeOS | Minix | Solaris | z/OS | Android |
While storage devices usually have their size expressed in powers of 10 (for instance a 1 TB Solid State Drive will contain at least 1,000,000,000,000 (1012, 10004) bytes), filesystem limits are invariably powers of 2, so usually expressed with IEC prefixes. For instance, a 1 TiB limit means 240, 10244 bytes. Approximations (rounding down) using power of 10 are also given below to clarify.
File system | Maximum filename length | Allowable characters in directory entries |
---|
ntfsresize(8)
.nilfs-resize(8)
.