معلومات عامة

wikitable sortable auto text- smaller table-layout fixed

! File syst نظام الملفات

! Creator المطور له

! تاريخ الظهور Year of introduction

! نظام العمليات الاساسي Original operating syst

–

rh DECtape

Digital Equipment Corporation DEC

1964

PDP-6 Monitor

–

rh Direct-access storage device DASD

IBM اي بي ام

1964

OS/360

–

rh Level-D

Digital Equipment Corporation DEC

1968

TOPS-10

–

rh George 2

International Computers and Tabulators ICT (later ICL)

1968

GEORGE (operating syst ) George 2

–

rh Version 6 Unix file syst (V6FS)

Bell Labs

1972

Version 6 Unix

–

rh RT-11 file syst

Digital Equipment Corporation DEC

1973

RT-11

–

rh CP/M File syst CP/M file syst

Gary Kildall

1974

CP/M

–

rh GEC DOS filing syst extended

The General Electric Company plc GEC

1977

OS4000

–

rh File Allocation Table FAT12

Microsoft ميكروسوفت

1977

Microsoft BASIC Microsoft Disk BASIC

–

rh Apple DOS DOS 3.x دوس حاسب ابل

Apple Computer حاسب ابل

1978

Apple DOS دوس حاسب ابل

–

rh Apple Pascal Pascal بسكال ابل

Apple Computer

1978

Apple Pascal

–

rh Commodore DOS CBM DOS

Commodore International Commodore

1978

Microsoft BASIC Microsoft BASIC (for CBM PET)

–

rh Version 7 Unix file syst (V7FS)

Bell Labs

1979

Version 7 Unix

–

rh Files-11 ODS-2

Digital Equipment Corporation DEC

1979

OpenVMS

–

rh Disc Filing Syst DFS

Acorn Computers Ltd

1982

BBC Micro Acorn BBC Micro Acorn MOS MOS

–

rh Advanced Disc Filing Syst ADFS

Acorn Computers Ltd

1983

Acorn Electron (later Arthur RISC OS)

–

rh Berkeley Fast File Syst FFS

Marshall Kirk McKusick Kirk McKusick

1983

BSD 4.2BSD

–

rh PRODOS ProDOS

Apple Computer

1983

PRODOS ProDOS 8

–

rh Macintosh File Syst MFS نظام ملفات ماكنتوش

Apple Computer حاسب ابل

1984

Mac OS

–

rh Elektronika BK tape format

NPO Scientific centre (now Sitronics)

1985

Vilnius Basic, BK monitor program

–

rh Hierarchical File Syst HFS

Apple Computer

1985

Mac OS

–

rh Amiga Old File Syst Amiga OFS ref 54

Metacomco for Commodore International Commodore

1985

Amiga OS

–

rh High Sierra Format High Sierra

Ecma International

1985

MS-DOS, Microsoft Windows, Mac OS

–

rh NetWare File Syst NWFS

Novell

1985

Novell NetWare NetWare 286

–

rh File Allocation Table FAT16

Microsoft

1987

MS-DOS 3.31

–

rh Minix file syst Minix V1 FS

Andrew S. Tanenbaum

1987

Minix 1.0

–

rh Amiga Fast File Syst Amiga FFS

Commodore International Commodore

1988

Amiga OS 1.3

–

rh High Performance File Syst HPFS

IBM & Microsoft

1988

OS/2

–

rh ISO 9660 ISO 9660 1988

Ecma International, Microsoft

1988

MS-DOS, Microsoft Windows, Linux, Mac OS X, FreeBSD, and AmigaOS

–

rh JFS file syst JFS1

IBM

1990

IBM AIX (operating syst ) AIX efn name note-11 IBM introduced JFS with the initial release of AIX operating syst AIX Version 3.1 in 1990. This file syst now called JFS1. The new JFS, on which the Linux port was based, was first shipped in OS/2 Warp Server for e-Business in 1999. The same sourcebase was also used for release JFS2 on AIX 5L.

–

rh Veritas File Syst VxFS

Veritas Software VERITAS

1991

Syst V SVR4.0

–

rh Extended file syst ext

Rémy Card

1992

Linux

–

rh AdvFS

Digital Equipment Corporation DEC

1993 cite web last1 Warren first1 David date 20 October 1993 Poly File Syst – – HELP url http //www.ornl.gov/lists/mailing-lists/tru64-unix-managers/1993/10/msg00043.html archive-url https //web.archive.org/web/ 0309144054/http //www.ornl.gov/lists/mailing-lists/tru64-unix-managers/1993/10/msg00043.html archive-date 9 March

Digital Unix

–

rh NTFS

Microsoft, Gary Kimura, Tom Miller (computer programmer) Tom Miller

1993

Windows NT

–

rh Log-structured File Syst (BSD) LFS

Margo Seltzer

1993

Sprite operating syst Berkeley Sprite

–

rh ext2

Rémy Card

1993

Linux, Hurd

–

rh Xiafs

Q. Frank Xia

1993

Linux

–

rh Unix File Syst UFS1

Marshall Kirk McKusick Kirk McKusick

1994

BSD 4.4BSD

–

rh XFS

Silicon Graphics SGI

1994

IRIX, Linux, FreeBSD

–

rh HFS

IBM

1994

MVS/ESA (now z/OS)

–

rh Joliet (file syst ) Joliet ( CDFS )

Microsoft

1995

Microsoft Windows, Linux, Mac OS X, and FreeBSD

–

rh Universal Disk Format UDF

International Organization for Standardization ISO/Ecma International ECMA/Optical Storage Technology Association OSTA

1995

n/a

–

rh File Allocation Table FAT32

Microsoft

1996

Windows 95b efn name note-10 Microsoft first introduced FAT32 in Windows 95 OSR2 (OEM Service Release 2) and then later in Windows 98. NT-based Windows did not have < >any support for FAT32 up to Windows NT4 Windows 2000 was the first NT-based Windows OS that received the ability to work with it.

–

rh QFS

Sun Microsyst s

1996

Solaris (operating syst ) Solaris

–

rh GPFS

IBM

1996

IBM AIX (operating syst ) AIX, Linux

–

rh Be File Syst

Be Inc., Dominic Giampaolo D. Giampaolo, Cyril Meurillon

1996

BeOS

–

rh Minix file syst Minix V2 FS

Andrew S. Tanenbaum

1997

Minix 2.0

–

rh HFS Plus

Apple Computer

1998

Mac OS 8 Mac OS 8.1

–

rh Novell Storage Services NSS

Novell

1998

Novell NetWare NetWare 5

–

rh PolyServe File Syst (PSFS)

PolyServe

1998

Windows, Linux

–

rh Files-11 ODS-5

Digital Equipment Corporation DEC

1998

OpenVMS 7.2

–

rh Write Anywhere File Layout WAFL

NetApp

1998

NetApp filer Data ONTAP

–

rh ext3

Stephen Tweedie Dr. Stephen C. Tweedie

1999

Linux

–

rh ISO 9660 ISO 9660 1999

Ecma International, Microsoft

1999

Microsoft Windows, Linux, Mac OS X, FreeBSD, and AmigaOS

–

rh Lustre (file syst ) Lustre

Cluster File Syst s cite press release Sun Microsyst s Expands High Performance Computing Portfolio with Definitive Agre ent to Acquire Assets of Cluster File Syst s, Including the Lustre File Syst location Santa Clara, Calif. date 12 Sept ber publisher Sun Microsyst s, Inc. url http //www.sun.com/aboutsun/pr/ -09/sunflash. 0912.2.xml archiveurl https //web.archive.org/web/ 1002091821/http //www.sun.com/aboutsun/pr/ -09/sunflash. 0912.2.xml archivedate 2 October

2002

Linux

–

rh JFS file syst JFS

IBM

1999

OS/2 Warp Server for e-business

–

rh Global File Syst GFS

Sistina Software Sistina (Red Hat)

2000

Linux

–

rh ReiserFS

Namesys

2001

Linux

–

rh zFS

IBM

2001

z/OS (backported to OS/390)

–

rh FATX

Microsoft

2002

Xbox

–

rh Unix File Syst UFS2

Marshall Kirk McKusick Kirk McKusick

2002

FreeBSD 5.0

–

rh OCFS

Oracle Corporation

2002

Linux

–

rh VMware VMFS VMFS2

VMware

2002

VMware ESX Server 2.0

–

rh Fossil (file syst ) Fossil

Bell Labs

2003

Plan 9 from Bell Labs 4

–

rh Google File Syst

Google

2003

Linux

–

rh ZFS

Sun Microsyst s

2004

Solaris (operating syst ) Solaris

–

rh Reiser4

Namesys

2004

Linux

–

rh Non-Volatile File Syst

Palm, Inc.

2004

Palm OS Garnet

–

rh Minix file syst Minix V3 FS

Andrew S. Tanenbaum

2005

Minix 3 MINIX 3

–

rh OCFS2

Oracle Corporation

2005

Linux

–

rh NILFS

Nippon Telegraph and Telephone NTT

2005

Linux

–

rh VMware VMFS VMFS3

VMware

2005

VMware ESX Server 3.0

–

rh Global File Syst 2 GFS2

Red Hat

Linux

–

rh ext4

various

Linux

–

rh exFAT

Microsoft

Windows CE 6.0

–

rh Btrfs

Oracle Corporation

Linux

–

rh JXFS

Hyperion Entertainment

AmigaOS 4 AmigaOS 4.1

–

rh HAMMER

Matthew Dillon

DragonFly BSD 2.0

–

rh Log-Structured File Syst LSFS

StarWind Software

Linux, FreeBSD, Windows

–

rh CASL

Nimble Storage

Linux

–

rh VMFS5

VMware

vSphere 5.0+

–

rh ReFS

Microsoft

Windows Server

حدوده او مقيداته Limitations

wikitable sortable auto text- smaller table-layout fixed

! File syst

نظام الملفات

! Maximum filename length

اقصى طول لاسم الملف

! Allowable characters in directory entries

الرموز والحروف المسموح بها efn name note-25 These are the restrictions imposed by the on-disk directory entry structures th selves. Particular Installable File Syst drivers may place restrictions of their own on file and directory names and particular and operating syst s may also place restrictions of their own, across all filesyst s. MS-DOS, Microsoft Windows, and OS/2 disallow the characters / ? * > < and NUL in file and directory names across all filesyst s. Unix Unices and Linux disallow the characters / and NUL in file and directory names across all filesyst s.

! Maximum pathname length

اقصى طول لمسار الوصول للملف او المجلد

! Maximum file size

اقصى حجم للملف

! Maximum volume size

اقصى حجم للقسم efn name note-4 For filesyst s that have variable allocation unit (block/cluster) sizes, a range of size are given, indicating the maximum volume sizes for the minimum and the maximum possible allocation unit sizes of the filesyst (e.g. 512 bytes and 128 kibibyte KiB for FAT — which is the cluster size range allowed by the on-disk data structures, although some Installable File Syst drivers and operating syst s do not support cluster sizes larger than 32 kibibyte KiB).

–

rh CP/M file syst

8.3

?

Initial versions had no subdirectories

data-sort- number data-sort-value 0 ?

data-sort- number data-sort-value 0 ?

–

rh IBM SFS

8.8

?

?

data-sort- number data-sort-value 0 Non-hierarchical cite web SFS file syst website IBM Knowledge Center url http //www-01.ibm.com/support/knowledge /SS6SGM_3.1.0/com.ibm.aix.cbl.doc/PGandLR/ref/rpfio50.htm

data-sort- number data-sort-value 0 ?

–

rh DECtape

6.3

A–Z, 0–9

DTxN FILNAM.EXT 15

data-sort- number data-sort-value 369280 369,280 bytes (577 * 640)

data-sort- number data-sort-value 369280 369,920 bytes (578 * 640)

–

rh Elektronika BK tape format

16 bytes

No directory hierarchy

لا يوجد تسلسل للمجلدات او اي دليل

data-sort- number data-sort-value 65536 64 KiB

data-sort- number data-sort-value 800000 Not limited. Approx. 800KB (one side) for 90 min cassette

–

rh MicroDOS file syst

14 bytes

data-sort- number data-sort-value 16777216 16 MiB

data-sort- number data-sort-value 33554432 32 MiB

–

rh Level-D

6.3

A–Z, 0–9

DEVICE FILNAM.EXT[PROJCT,PROGRM] 7 + 10 + 15 32 + 5*7 for SFDs 67

data-sort- number data-sort-value 206158430208 34,359,738,368 words (2**35-1) 206,158,430,208 SIXBIT bytes

data-sort- number data-sort-value 11392000000 Approx 12 GB (64 * 178 MB)

–

rh RT-11

6.3

A–Z, 0–9, $

0 (لا يوجد تسلسل للمجلدات او اي دليل )

data-sort- number data-sort-value 33554432 33,554,432 bytes (65536 * 512)

data-sort- number data-sort-value 33554432 33,554,432 bytes

–

rh Version 6 Unix file syst (V6FS)

14 bytes efn name note-24 Depends on whether the FAT12, FAT16, and FAT32 < >impl entation has support for Long filename LFNs. Where it does not, as in OS/2, MS-DOS, Windows 95, Windows 98 in DOS-only mode and the Linux msdos driver, file names are limited to 8.3 filename 8.3 format of 8-bit characters (space padded in both the basename and extension parts) and may not contain NUL (end-of-directory marker) or character 5 (replac ent for character 229 which itself is used as deleted-file marker). Short names also do not normally contain lowercase letters. Also note that a few special names (CON, NUL, LPT1) should be avoided, as some operating syst s (notably DOS and windows) effectively reserve th .

Any byte except Null character NUL and / efn name note-26 In these filesyst s the directory entries named . and .. have special status. Directory entries with these names are not prohibited, and indeed exist as normal directory entries in the on-disk data structures. However, they are mandatory directory entries, with mandatory values, that are automatically created in each directory when it is created and directories without th are considered corrupt.

لا حدود محددة efn name note-12 The on-disk structures have no inherent limit. Particular Installable File Syst drivers and operating syst s may impose limits of their own, however. MS-DOS does not support full pathnames longer than 260 bytes for FAT12 and FAT16. Windows NT does not support full pathnames longer than 32,767 bytes for NTFS. Linux has a pathname limit of 4,096.

data-sort- number data-sort-value 8388608 8 mebibyte MiB efn name note-57 The actual maximum was 8,847,360 bytes, with 7 singly-indirect blocks and 1 doubly-indirect block PWB/UNIX 1.0″s variant had 8 singly-indirect blocks, making the maximum 524,288 bytes or half a mebibyte MiB.

data-sort- number data-sort-value 2199023255552 2 tebibyte TiB

–

rh GEC DOS filing syst extended

8 bytes

A–Z, 0–9. Period was directory separator

dunno لا حدود محددة (workaround for OS limit)

data-sort- number data-sort-value 0 dunno at least 131,072 bytes

data-sort- number data-sort-value 0 dunno

–

rh Commodore DOS CBM DOS

16 bytes

Any byte except NUL

0 (لا يوجد تسلسل للمجلدات او اي دليل )

data-sort- number data-sort-value 16777216 16 mebibyte MiB

data-sort- number data-sort-value 16777216 16 mebibyte MiB

–

rh Version 7 Unix file syst (V7FS)

14 bytes efn name note-24

Any byte except NUL and / efn name note-26
لا حدود محددة efn name note-12

data-sort- number data-sort-value 1073741824 1 gibibyte GiB efn name note-58 The actual maximum was 1,082,201,088 bytes, with 10 direct blocks, 1 singly-indirect block, 1 doubly-indirect block, and 1 triply-indirect block. The 4.0BSD and 4.1BSD versions, and the UNIX Syst V Syst V version, used 1,024-byte blocks rather than 512-byte blocks, making the maximum 4,311,812,608 bytes or approximately 4 gibibyte GiB.

data-sort- number data-sort-value 2199023255552 2 tebibyte TiB

–

rh exFAT

255 UTF-16 characters

dunno

لا حدود محددة

data-sort- number data-sort-value 18446744073709551616 16 exbibyte EiB

data-sort- number data-sort-value 75557863725914323419136 64 zebibyte ZiB (276  bytes)
–

rh File Allocation Table FAT12

8.3 filename 8.3 (255 UTF-16 characters with LFN) efn name note-24

Any Unicode except NUL (with LFN) efn name note-24 efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 33554432 32 mebibyte MiB

data-sort- number data-sort-value 33554432 1 mebibyte MiB to 32 mebibyte MiB

–

rh File Allocation Table FAT16

8.3 filename 8.3 (255 UTF-16 characters with LFN) efn name note-24

Any Unicode except NUL (with LFN) efn name note-24 efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

data-sort- number data-sort-value 2147483648 16 mebibyte MiB to 2 gibibyte GiB

–

rh File Allocation Table FAT32

8.3 filename 8.3 (255 UTF-16 characters with LFN) efn name note-24

Any Unicode except NUL (with LFN) efn name note-24 efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 4294967296 4 gibibyte GiB

data-sort- number data-sort-value 8796093022208 512 mebibyte MiB to 8 tebibyte TiB efn While FAT32 Partition (computing) partitions this large work fine once created, some software won”t allow creation of FAT32 partitions larger than 32 gibibyte GiB. This includes, notoriously, the Windows XP installation program and the Disk Manag ent console in Windows 2000, XP, 2003 and Vista. Use Fdisk FDISK from a Windows Me Windows ME Emergency Boot Disk to avoid. cite web Limitations of the FAT32 File Syst in Windows XP publisher Microsoft url http //support.microsoft.com/kb/314463

–

rh FATX

42 bytes efn name note-24

ASCII. Unicode not permitted.

لا حدود محددة efn name note-12

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

data-sort- number data-sort-value 2147483648 16 mebibyte MiB to 2 gibibyte GiB

–

rh Fossil (file syst ) Fossil

dunno

dunno

dunno

data-sort- number data-sort-value 0 dunno

data-sort- number data-sort-value 0 dunno

–

rh Macintosh File Syst MFS

255 bytes

Any byte except
No path (flat filesyst )

data-sort- number data-sort-value 268435456 256 mebibyte MiB

data-sort- number data-sort-value 268435456 256 mebibyte MiB

–

rh Hierarchical File Syst HFS

31 bytes

Any byte except
Unlimited

غير محدود

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

data-sort- number data-sort-value 2199023255552 2 tebibyte TiB

–

rh High Performance File Syst HPFS

255 bytes

Any byte except NUL efn name note-27 The . and .. directory entries in HPFS that are seen by applications programs are a partial fiction created by the Installable File Syst drivers. The on-disk data structure for a directory does not contain entries by those names, but instead contains a special start entry. Whilst on-disk directory entries by those names are not physically prohibited, they cannot be created in normal operation, and a directory containing such entries is corrupt.

لا حدود محددة efn name note-12

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

data-sort- number data-sort-value 2199023255552 2 tebibyte TiB efn name note-13 This is the limit of the on-disk structures. The HPFS Installable File Syst driver for OS/2 uses the top 5 bits of the volume sector number for its own use, limiting the volume size that it can handle to 64 gibibyte GiB.

–

rh NTFS

255 characters
Any Unicode except NUL, /
32,767 Unicode characters with each path component (directory or filename) up to 255 characters long efn name note-12

data-sort- number data-sort-value 18446744073709551616 16 EiB efn name note-55 This is the limit of the on-disk structures. The NTFS driver for Windows NT limits the volume size that it can handle to 256 tebibyte TiB and the file size to 16 tebibyte TiB respectively.

data-sort- number data-sort-value 18446744073709551616 16 EiB efn name note-55

–

rh ReFS

255 UTF-16 charactersBuilding the next generation file syst for Windows ReFS Building Windows 8

Any Unicode except NUL, /
32,767 Unicode characters with each path component (directory or filename) up to 255 characters long
data-sort- number data-sort-value 18446744073709551616 16 EiB
data-sort- number data-sort-value 18446744073709551616 16 EiB
–

rh HFS Plus

255 UTF-16 characters efn name note-1 The Mac OS provides two sets of functions to retrieve file names from an HFS Plus volume, one of th returning the full Unicode names, the other shortened names fitting in the older 31 byte limit to accommodate older applications.

Any valid Unicode efn name note-26 efn name note-2 HFS Plus mandates support for an escape sequence to allow arbitrary Unicode. Users of older software might see the escape sequences instead of the desired characters.

Unlimited

غير محدود

data-sort- number data-sort-value 9223372036854775808 slightly less than 8  EiB

data-sort- number data-sort-value 9223372036854775808 slightly less than 8  EiBSee http //docs.info.apple.com/article.html?artnum 25557 and http //docs.info.apple.com/article.html?artnum 24601.
–

rh Berkeley Fast File Syst FFS

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 4294967296 4 gibibyte GiB

data-sort- number data-sort-value 281474976710656 256 tebibyte TiB

–

rh HAMMER

255 byteshttp //apollo.backplane.com/DFlyMisc/hammer2.txt
Any byte except NUL efn name note-26

dunno

data-sort- number data-sort-value 0 dunno

data-sort- number data-sort-value 1152921504606846976 1 exbibyte EiBhttp //www.dragonflybsd.org/hammer/hammer.pdf
–

rh Unix File Syst UFS1

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 281474976710656 4 gibibyte GiB to 256 tebibyte TiB

data-sort- number data-sort-value 281474976710656 256 tebibyte TiB

–

rh Unix File Syst UFS2

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 36028797018963968 512 gibibyte GiB to 32 pebibyte PiB

data-sort- number data-sort-value 649037107316853896642560 512 Zebibyte ZiB cite web url https //www.freebsd.org/doc/faq/book.html Frequently Asked Questions for FreeBSD 9.X and 10.X publisher FreeBSD Documentation Project accessdate -03-20 quote If there was not a fsck(8) m ory limit the maximum filesyst size would be 2 ^ 64 (blocks) * 32 KB > 16 Exa * 32 KB > 512 ZettaBytes. (279 bytes)

–

rh Extended file syst ext

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

–

rh Xiafs

248 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 67108864 64 mebibyte MiB

data-sort- number data-sort-value 2147483648 2 gibibyte GiB

–

rh ext2

255 bytes

Any byte except NUL, / efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 2199023255552 16 gibibyte GiB to 2  tebibyte TiB efn name note-4

data-sort- number data-sort-value 35184372088832 2 tebibyte TiB to 32 tebibyte TiB

–

rh ext3

255 bytes

Any byte except NUL, / efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 2199023255552 16 gibibyte GiB to 2  tebibyte TiB efn name note-4

data-sort- number data-sort-value 35184372088832 2 tebibyte TiB to 32 tebibyte TiB

–

rh ext4

255 bytes

Any byte except NUL, / efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 17592186044416 16 gibibyte GiB to 16  tebibyte TiB efn name note-4 cite web Interviews/EricSandeen date 9 June website Fedora Project Wiki url http //fedoraproject.org/wiki/Interviews/EricSandeen
data-sort- number data-sort-value 1152921504606846976 1 EiB

–

rh Lustre (file syst ) Lustre

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 18446744073709551616 16 exbibyte EiB on ZFS

data-sort- number data-sort-value 18446744073709551616 16 exbibyte EiB

–

rh General Parallel File Syst GPFS

255 UTF-8 codepoints

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 0 No limit found

data-sort- number data-sort-value 633825300114114700748351602688 299 bytes (2 Petabyte PiB tested)
–

rh Global File Syst GFS

255

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 9223372036854775808 2 Tebibyte TiB to 8 exbibyte EiB efn name note-63 Depends on kernel version and arch. For 2.4 kernels the max is 2 TiB. For 32-bit 2.6 kernels it is 16 TiB. For 64-bit 2.6 kernels it is 8 EiB.

data-sort- number data-sort-value 9223372036854775808 2 Tebibyte TiB to 8 exbibyte EiB efn name note-63

–

rh NILFS

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 9223372036854775808 8 EiB

data-sort- number data-sort-value 9223372036854775808 8 EiB

–

rh ReiserFS

4,032 bytes/255 characters

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 8796093022208 8 tebibyte TiB efn ReiserFS has a theoretical maximum file size of 1 exbibyte EiB, but page cache limits this to 8 Ti on architectures with 32 bit int cite web FAQ date 15 October 2003 website namesys url http //www.namesys.com/faq.html reiserfsspecs archive-url https //web.archive.org/web/ 0719110322/http //www.namesys.com/faq.html reiserfsspecs archive-date 19 July (v3.6), 4 gibibyte GiB (v3.5)
data-sort- number data-sort-value 17592186044416 16 tebibyte TiB

–

rh Reiser4

3,976 bytes

Any byte except / and NUL
لا حدود محددة efn name note-12

data-sort- number data-sort-value 8796093022208 8 tebibyte TiB on x86

data-sort- number data-sort-value 0 dunno

–

rh OCFS

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 8796093022208 8 tebibyte TiB

data-sort- number data-sort-value 8796093022208 8 tebibyte TiB

–

rh OCFS2

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 4503599627370496 4 pebibyte PiB

data-sort- number data-sort-value 4503599627370496 4 pebibyte PiB

–

rh XFS

255 bytes efn Note that the filename can be much longer XFS Extended attributes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 9223372036854775808 8 exbibyte EiB efn name note-9 XFS has a limitation under Linux 2.4 of 64 tebibyte TiB file size, but Linux 2.4 only supports a maximum block size of 2 tebibyte TiB. This limitation is not present under IRIX.

data-sort- number data-sort-value 9223372036854775808 8 exbibyte EiB efn name note-9

–

rh JFS file syst JFS1

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 9223372036854775808 8 exbibyte EiB

data-sort- number data-sort-value 4503599627370496 512 tebibyte TiB to 4 pebibyte PiB

–

rh JFS file syst JFS

255 bytes

Any Unicode except NUL

لا حدود محددة efn name note-12

data-sort- number data-sort-value 4503599627370496 4 pebibyte PiB

data-sort- number data-sort-value 36028797018963968 32 pebibyte PiB

–

rh QFS

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 18446744073709551616 16 exbibyte EiB efn name note-72 QFS allows files to exceed the size of disk when used with its integrated HSM, as only part of the file need reside on disk at any one time.

data-sort- number data-sort-value 4503599627370496 4 pebibyte PiB efn name note-72

–

rh Be File Syst BFS

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 279172874240 12,288 bytes to 260 gibibyte GiB efn name note-3 Varies wildly according to block size and fragmentation of block allocation groups.

data-sort- number data-sort-value 2305843009213693952 256 pebibyte PiB to 2 exbibyte EiB

–

rh AdvFS

255 characters

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 17592186044416 16 tebibyte TiB

data-sort- number data-sort-value 17592186044416 16 tebibyte TiB

–

rh Novell Storage Services NSS

256 characters

Depends on namespace used efn name note-28 NSS allows files to have multiple names, in separate namespaces.

Only limited by client

data-sort- number data-sort-value 8796093022208 8 tebibyte TiB

data-sort- number data-sort-value 8796093022208 8 tebibyte TiB

–

rh NetWare File Syst NWFS

80 bytes efn name note-52 Some namespaces had lower name length limits. LONG had an 80-byte limit, NWFS 80 bytes, NFS 40 bytes and DOS imposed 8.3 filename.

Depends on namespace used efn name note-28

لا حدود محددة efn name note-12

data-sort- number data-sort-value 4294967296 4 gibibyte GiB

data-sort- number data-sort-value 1099511627776 1 tebibyte TiB

–

rh Files-11 ODS-5

236 bytes efn name note-15 Maximum combined filename/file length is 236 bytes each component has an individual maximum length of 255 bytes.

dunno

4,096 bytes efn name note-16 Maximum pathname length is 4,096 bytes, but quoted limits on individual components add up to 1,664 bytes.

data-sort- number data-sort-value 1099511627776 1 tebibyte TiB

data-sort- number data-sort-value 1099511627776 1 tebibyte TiB

–

rh Veritas File Syst VxFS

255 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 18446744073709551616 16 exbibyte EiB

data-sort- number data-sort-value 0 dunno

–

rh Universal Disk Format UDF

255 bytes

Any Unicode except NUL

1,023 bytes efn name note-43 This restriction might be lifted in newer versions.

data-sort- number data-sort-value 18446744073709551616 16 exbibyte EiB

data-sort- number data-sort-value 0 dunno

–

rh ZFS

255 bytes

Any Unicode except NUL

لا حدود محددة efn name note-12

data-sort- number data-sort-value 18446744073709551616 16 EiB

data-sort- number data-sort-value 302231454903657293676544 256 Zebibyte ZiB (278  bytes)
–

rh Btrfs

255 bytes

Any byte except “/” and NUL

لا حدود محددة

data-sort- number data-sort-value 18446744073709551616 16 EiB

data-sort- number data-sort-value 18446744073709551616 16 EiB

–

rh Minix file syst Minix V1 FS

14 or 30 bytes, set at filesyst creation time

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 1073741824 1 gibibyte GiB

data-sort- number data-sort-value 1073741824 1 gibibyte GiB

–

rh Minix file syst Minix V2 FS

14 or 30 bytes, set at filesyst creation time

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 1073741824 1 gibibyte GiB

data-sort- number data-sort-value 1073741824 1 gibibyte GiB

–

rh Minix file syst Minix V3 FS

60 bytes

Any byte except NUL efn name note-26

لا حدود محددة efn name note-12

data-sort- number data-sort-value 4294967296 4 gibibyte GiB

data-sort- number data-sort-value 4294967296 4 gibibyte GiB

–

rh VMware VMFS VMFS2

128

Any byte except NUL and / efn name note-26
2,048

data-sort- number data-sort-value 4398046511104 4 tebibyte TiB efn name note-74 Maximum file size on a VMFS volume depends on the block size for that VMFS volume. The figures here are obtained by using the maximum block size.

data-sort- number data-sort-value 70368744177664 64 tebibyte TiB

–

rh VMware VMFS VMFS3

128

Any byte except NUL and / efn name note-26
2,048

data-sort- number data-sort-value 2199023255552 2 tebibyte TiB efn name note-74

data-sort- number data-sort-value 70368744177664 64 tebibyte TiB

–

rh ISO 9660 ISO 9660 1988

Level  1 8.3,

Level  2  &   3 ~  180
Depends on Level efn ISO 9660 Restrictions

~ 180 bytes?

data-sort- number data-sort-value 8796093022208 4 GiB (Level 1 & 2) to 8 TiB (Level 3) efn Through the use of multi-extents, a file can consist of multiple segments, each up to 4 GiB in size. See ISO 9660 The 2 GiB .28or 4 GiB depending on impl entation.29 file size limit

data-sort- number data-sort-value 8796093022208 8 TiB efn Assuming the typical 2048 Byte sector size. The volume size is specified as a 32 bit value identifying the number of sectors on the volume.

–

rh Joliet (file syst ) Joliet ( CDFS )

64 Unicode characters

All UCS-2 code except *, /, , , , and ? cite web url http //bmrc.berkeley.edu/people/chaffee/jolspec.html Joliet Specification date 22 May 1995 archive-url https //web.archive.org/web/ 0414104421/http //bmrc.berkeley.edu/people/chaffee/jolspec.html archive-date 14 April
?

data-sort- number data-sort-value 8796093022208 same as ISO 9660 ISO 9660 1988

data-sort- number data-sort-value 8796093022208 same as ISO 9660 ISO 9660 1988

–

rh ISO 9660 ISO 9660 1999

?

?

?

data-sort- number data-sort-value 0 dunno

data-sort- number data-sort-value 0 dunno

–

rh High Sierra Format High Sierra

?

?

?

data-sort- number data-sort-value 0 dunno

data-sort- number data-sort-value 0 dunno

– sortbottom

! File syst

نظام الملفات

! Maximum filename length

اقصى طول لاسم الملف

! Allowable characters in directory entries

الرموز والحروف المسموح بها

! Maximum pathname length

اقصى طول لمسار الوصول للملف او المجلد

! Maximum file size

اقصى حجم للملف

! Maximum volume size

اقصى حجم للقسم

efn name note-4

بيانات وصفية (ميتاداتا) Metadata

wikitable sortable auto text- smaller table-layout fixed

! File syst مسمى نظام الملفات

! Stores file owner مالك النظام

! POSIX file permissions سماحية النظام

! Creation timestamps انشاء

! Last access/ read timestamps

! Last metadata change timestamps

! Last archive timestamps

! Access control lists

! Security/ Mandatory access control MAC labels

! Extended attributes/ Fork (filesyst ) Alternate data streams/ forks

! Checksum/ Error-correcting code ECC

–

rh CP/M file syst

no

no

yes efn Impl ented in later versions as an extension

no

no

no

no

no

no

no

–

rh DECtape cite web
url http //bitsavers.trailing-edge.com/pdf/dec/pdp11/rt11/v5.6_Aug91/AA-PD6PA-TC_RT-11_Volume_and_File_Formats_Manual_Aug91.pdf

RT–11 Volume and File Formats Manual

publisher Digital Equipment Corporation

date August 1991

page 1-26 .. 1-32

no

no

yes

no

no

no

no

no

no

no

–

rh Elektronika BK tape format

no

no

no

no

no

no

no

no

no

yes

–

rh Level-D

yes

yes

yes

yes

yes

yes

yes

no

no

no

–

rh RT-11 cite web
url http //bitsavers.trailing-edge.com/pdf/dec/pdp11/rt11/v5.6_Aug91/AA-PD6PA-TC_RT-11_Volume_and_File_Formats_Manual_Aug91.pdf

RT–11 Volume and File Formats Manual

publisher Digital Equipment Corporation

date August 1991

page 1-4 .. 1-12

no

no

yes (date only)
no

no

no

no

no

no

yes

–

rh Version 6 Unix file syst (V6FS) cite web

url http //www.utdallas.edu/~venky/os/Proj/disk.pdf

Format of the Unix 6 file syst

accessdate -02-21

yes

yes

no

yes

no

no

no

no

no

no

–

rh Version 7 Unix file syst (V7FS)See dinode structure on page 355 (< >FILESYS(5)) of cite web

url http //web.cuzuco.com/~cuzuco/v7/v7vol1.pdf

Unix Programmers Manual

publisher Bell Telephone Laboratories

location Murray Hill, New Jersey

edition Seventh

date January 1979

accessdate -02-21

yes

yes

yes

yes

no

no

no

no

no

no

–

rh File Allocation Table FAT12/16/32

no

no

yes

yes

no efn name fat-ctime Some FAT impl entations, such as in Linux, show file modification timestamp (mtime) in the metadata change timestamp (ctime) field. This timestamp is however, not updated on file metadata change.

no

no

no

no efn name note-22 Particular Installable File Syst drivers and operating syst s may not support extended attributes on FAT12 and FAT16. The OS/2 and Windows NT filesyst drivers for FAT12 and FAT16 support extended attributes (using a EA  DATA.  SF pseudo-file to reserve the clusters allocated to th ). Other filesyst drivers for other operating syst s do not.

no

–

rh High Performance File Syst HPFS

yes efn name note-14 The < >f-node contains a field for a user identifier. This is not used except by OS/2 OS/2 Warp Server, however.

no

yes

yes

no

no

no

dunno

yes

no

–

rh NTFS

yes

yes efn name note-5 NTFS access control lists can express any access policy possible using simple POSIX file permissions (and far more), but use of a POSIX-like interface is not supported without an add-on such as Services for UNIX or Cygwin.

yes

yes

yes

no

yes

yes efn As of Vista, NTFS has support for Mandatory Labels, which are used to enforce Mandatory Integrity Control.Mandatory Integrity Control (Windows)

yes

no

–

rh ReFS

yes

yes

yes

yes

yes

no

yes

dunno

yes efn Initially, ReFS lacked support for ADS, but Server R2 and up add support for ADS on ReFS

yes efn Data checksums not enabled by default

–

rh Hierarchical File Syst HFS

no

no

yes

no

no

yes

no

no

yes

no

–

rh HFS Plus

yes

yes

yes

yes

yes

yes

yes

dunno

yes

no

–

rh Berkeley Fast File Syst FFS

yes

yes

no

yes

yes

no

no

no

no

no

–

rh Unix File Syst UFS1

yes

yes

no

yes

yes

no

yes efn name note-33 Access-control lists and MAC labels are layered on top of extended attributes.

yes efn name note-33

no efn name note-32 Some operating syst s impl ented extended attributes as a layer over UFS1 with a parallel backing file (e.g., FreeBSD 4.x).

no

–

rh Unix File Syst UFS2

yes

yes

yes

yes

yes

no

yes efn name note-33

yes efn name note-33

yes

no

–

rh Log-structured File Syst (BSD) LFS

yes

yes

no

yes

yes

no

no

no

no

no

–

rh Extended file syst ext

yes

yes

no

no

no

no

no

no

no

no

–

rh Xiafs

yes

yes

no

yes

yes

no

no

no

no

no

–

rh ext2

yes

yes

no

yes

yes

no

yes efn name note-23 Some Installable File Syst drivers and operating syst s may not support extended attributes, access control lists or security labels on these filesyst s. Linux kernels prior to 2.6.x may either be missing support for these altogether or require a patch (computing) patch.

yes efn name note-23

yes

no

–

rh ext3

yes

yes

no

yes

yes

no

yes efn name note-23

yes efn name note-23

yes

no

–

rh ext4

yes

yes

yes

yes

yes

no

yes efn name note-23

yes efn name note-23

yes

no

–

rh Lustre (file syst ) Lustre

yes

yes

no

yes

yes

no

yes

yes

yes

no

–

rh GPFS

yes

yes

yes

yes

yes

no

yes

yes

yes

yes

–

rh Global File Syst GFS

yes

yes

no

yes

yes

no

yes efn name note-23

yes efn name note-23

yes

no

–

rh NILFS

yes

yes

yes

no

yes

no

no

no

no

yes

–

rh ReiserFS

yes

yes

no

yes

yes

no

yes efn name note-23

yes efn name note-23

yes

no

–

rh Reiser4

yes

yes

no

yes

yes

no

no

no

no

no

–

rh OCFS

no

yes

no

no

yes

yes

no

no

no

no

–

rh OCFS2

yes

yes

no

yes

yes

no

no

no

no

no

–

rh XFS

yes

yes

no

yes

yes

no

yes

yes efn name note-23

yes

no

–

rh JFS file syst JFS

yes

yes

yes

yes

yes

no

yes

yes

yes

no

–

rh QFS

yes

yes

yes

yes

yes

yes

yes

no

yes

no

–

rh Be File Syst BFS

yes

yes

yes

no

no

no

no

no

yes

no

–

rh AdvFS

yes

yes

no

yes

yes

no

yes

no

yes

no

–

rh Novell Storage Services NSS

yes

yes

yes efn name note-31 The local time, timezone/UTC offset, and date are derived from the time settings of the reference/single timesync source in the NDS tree.

yes efn name note-31

yes

yes efn name note-31

yes

dunno

yes efn name note-19 Novell calls this feature multiple data streams . Published specifications say that NWFS allows for 16 attributes and 10 data streams, and NSS allows for unlimited quantities of both. efn name note-29 Some file and directory metadata is stored on the NetWare server irrespective of whether Directory Services is installed or not, like date/time of creation, file size, purge status, etc and some file and directory metadata is stored in Novell Directory Services NDS/eDirectory, like file/object permissions, ownership, etc.

no

–

rh NetWare File Syst NWFS

yes

dunno

yes efn name note-31

yes efn name note-31

yes

yes efn name note-31

yes

dunno

yes efn name note-19 efn name note-29

no

–

rh Files-11 ODS-5

yes

yes

yes

dunno

dunno

yes

yes

dunno

yes efn name note-17 Record Manag ent Services (RMS) attributes include record and size, among many others.

no

–

rh Veritas File Syst VxFS

yes

yes

yes

yes

yes

no

yes

dunno

yes efn name note-23

no

–

rh Universal Disk Format UDF

yes

yes

yes

yes

yes

yes

yes

no

yes

no

–

rh Fossil (file syst ) Fossil

yes

yes efn name note-61 File permission in 9P (protocol) 9P are a variation of the traditional Unix permissions with some minor changes, eg. the suid bit is replaced by a new “exclusive access” bit.

no

yes

yes

no

no

no

no

no

–

rh ZFS

yes

yes

yes

yes

yes

yes

yes

no efn name note-69 MAC/Sensitivity labels in the file syst are not out of the question as a future compatible change but aren”t part of any available version of ZFS.

yes efn name note-60 Solaris extended attributes are really full-blown alternate data streams, in both the Solaris UFS and ZFS.

yes

–

rh Btrfs

yes

yes

yes

yes

dunno

dunno

yes

dunno

yes

yes

–

rh VMware VMFS VMFS2

yes

yes

no

yes

yes

no

no

no

no

no

–

rh VMware VMFS VMFS3

yes

yes

no

yes

yes

no

no

no

no

no

–

rh ISO 9660 ISO 9660 1988

no

no

yes

no

no

no

no

no

no

no

–

rh Joliet (file syst ) Joliet ( CDFS )

no

no

yes

no

no

no

no

no

no

no

–

rh ISO 9660 ISO 9660 1999

no

no

yes

no

no

no

no

no

no

no

–

rh High Sierra Format High Sierra

no

no

yes

no

no

no

no

no

no

no

– sortbottom

! File syst

! Stores file owner

! POSIX file permissions

! Creation timestamps

! Last access/read timestamps

! Last metadata change timestamps

! Last archive timestamps

! Access control lists

! Security/ Mandatory access control MAC labels

! Extended attributes/ Fork (filesyst ) Alternate data streams/ forks

! Checksum/ Error-correcting code ECC

ميزات Features

wikitable sortable auto text- smaller table-layout fixed

! File syst

! Hard links

! Symbolic links

! Journaling file syst Block journaling

! Journaling file syst Metadata-only journaling

! Case-sensitive

! Case-preserving

! File Change Log

! Internal snapshotting / branching

! Execute in place XIP

! Filesyst -level encryption

! Data deduplication

–

! DECtape

no

no

no

no

no

no

no

no

no

no

no

–

! Level-D

no

no

no

no

no

no

no

no

no

no

no

–

! RT-11

no

no

no

no

no

no

no

no

no

no

no

–

! Version 6 Unix file syst (V6FS)

yes

no

no

no

yes

yes

no

no

no

no

no

–

! Version 7 Unix file syst (V7FS)

yes

no efn name note-59 Syst V Release 4, and some other Unix syst s, retrofitted symbolic links to their versions of the Version 7 Unix file syst , although the original version didn”t support th .

no

no

yes

yes

no

no

no

no

no

–

! File Allocation Table FAT12/16/32

no

no

no

no

no

partial

no

no

no

no

no

–

! Global File Syst GFS

yes

yes efn Context based symlinks were supported in GFS, GFS2 only supports standard symlinks since the bind mount feature of the Linux VFS has made context based symlinks obsolete

yes

yes efn Optional journaling of data

yes

yes

no

no

no

no

dunno

–

! High Performance File Syst HPFS

no

no

no

no

no

yes

no

dunno

no

no

dunno

–

! NTFS

yes

yes efn As of Windows Vista, NTFS fully supports soft links.Windows Administration Inside the Windows Vista Kernel Part 1 NTFS 3.0 (Windows 2000) and higher can create < >junctions, which allow entire directories (but not individual files) to be mapped to elsewhere in the directory tree of the same partition (file syst ). These are impl ented through < >reparse points, which allow the normal process of filename resolution to be extended in a flexible manner.

no efn name note-37 NTFS stores everything, even the file data, as meta-data, so its log is closer to block journaling.

yes efn name note-37 (2000)

yes efn name note-36 While NTFS itself supports case sensitivity, the Win32 environment subsyst cannot create files whose names differ only by case for compatibility reasons. When a file is opened for writing, if there is any existing file whose name is a case-insensitive match for the new file, the existing file is truncated and opened for writing instead of a new file with a different name being created. Other subsyst s like e. g. Services for Unix, that operate directly above the kernel and not on top of Win32 can have case-sensitivity.

yes

yes

partial efn name note-93 NTFS does not internally support snapshots, but in conjunction with the Volume Shadow Copy Service can maintain persistent block differential volume snapshots.

dunno

yes

no

–

! HFS Plus

partial

yes

no

yes efn name note-48 Metadata-only journaling was introduced in the Mac OS 10.2.2 HFS Plus driver journaling is enabled by default on Mac OS 10.3 and later.

partial efn Although often believed to be case sensitive, HFS Plus normally is not. The typical default installation is case-preserving only. From Mac OS 10.3 on the command < >newfs_hfs -s will create a case-sensitive new file syst .newfs_hfs(8) Mac OS X Manual Page HFS Plus version 5 optionally supports case-sensitivity. However, since case-sensitivity is fundamentally different from case-insensitivity, a new signature was required so existing HFS Plus utilities would not see case-sensitivity as a file syst error that needed to be corrected. Since the new signature is “HX”, it is often believed this is a new filesyst instead of a simply an upgraded version of HFS Plus. cite web publisher Apple url http //developer.apple.com/documentation/MacOSX/Conceptual/BPFileSyst /Articles/Comparisons.html File Syst Comparisons (hasn”t been updated to discuss HFSX) cite web publisher Apple url http //developer.apple.com/technotes/tn/tn1150.html Technical Note TN1150 HFS Plus Volume Format (Very technical overview of HFS Plus and HFSX.)

yes

yes efn Mac OS Tiger (10.4) and late versions of Panther (10.3) provide file change logging (it”s a feature of the file syst software, not of the volume format, actually).fslogger

no

no

no efn name note-77 HFS+ does not actually encrypt files to impl ent FileVault, OS X creates an HFS+ filesyst in a sparse, encrypted disk image that is automatically mounted over the home directory when the user logs in.

dunno

–

! Berkeley Fast File Syst FFS

yes

yes

no

no

yes

yes

no

no

no

no

no

–

! Unix File Syst UFS1

yes

yes

no

no

yes

yes

no

no

no

no

no

–

! Unix File Syst UFS2

yes

yes

no

no efn name note-66 Soft dependencies (softdep) in NetBSD, called soft updates in FreeBSD provide meta-data consistency at all times without double writes (journaling file syst journaling)

yes

yes

no

yes

dunno

no

no

–

! Log-structured File Syst (BSD) LFS

yes

yes

yes efn name note-38 UDF, LFS, and NILFS are log-structured file syst s and behave as if the entire file syst were a journal.

no

yes

yes

no

yes

no

no

no

–

! Extended file syst ext

yes

yes

no

no

yes

yes

no

no

no

no

no

–

! Xiafs

yes

yes

no

no

yes

yes

no

no

no

no

no

–

! ext2

yes

yes

no

no

yes

yes

no

no

yes efn name note-65 Linux kernel versions 2.6.12 and newer.

no

no

–

! ext3

yes
yes
yes (2001) efn name note-62 Off by default.
yes (2001)
yes

yes

no

no

yes

no

no

–

! ext4

yes

yes

yes efn name note-62

yes

yes

yes

no

no

yes

yes , experimental cite web url https //lwn.net/Articles/639427/ Ext4 encryption
no

–

! Lustre (file syst ) Lustre

yes

yes

yes efn name note-62

yes

yes

yes

no

no

no

no

no

–

! NILFS

yes

yes

yes efn name note-38

no

yes

yes

no

yes

no

no

no

–

! ReiserFS

yes

yes

yes efn name note-44 Full block journaling for ReiserFS was added to Linux 2.6.8.

yes

yes

yes

no

no

dunno

no

no

–

! Reiser4

yes

yes

yes

no

yes

yes

no

dunno

dunno

yes efn name note-50 Reiser4 supports transparent compression and encryption with the < >cryptcompress plugin which is the default file handler in version 4.1.

dunno

–

! OCFS

no

yes

no

no

yes

yes

no

no

no

no

no

–

! OCFS2

yes

yes

yes

yes

yes

yes

no

no

no

no

no

–

! XFS

yes

yes

no

yes

yes efn name note-40 Optionally no on IRIX.

yes

yes

no

dunno

no

no

–

! JFS file syst JFS

yes
yes
no
yes (1990)
yes efn name note-30 Particular Installable File Syst drivers and operating syst s may not support case sensitivity for JFS. OS/2 does not, and Linux has a mount option for disabling case sensitivity.

yes

no

dunno

dunno

no

dunno

–

! QFS

yes

yes

no

yes

yes

yes

no

no

no

no

no

–

! Be File Syst

yes

yes

no

yes

yes

yes

dunno

dunno

no

no

no

–

! Novell Storage Services NSS

yes

yes

dunno

yes

yes efn name note-20 Case-sensitivity/Preservation depends on client. Windows, DOS, and OS/2 clients don”t see/keep case differences, whereas clients accessing via NFS or AFP may.

yes efn name note-20

yes efn name note-6 The file change logs, last entry change timestamps, and other filesyst metadata, are all part of the extensive suite of auditing capabilities built into NDS/eDirectory called NSure Audit.Filesyst Events tracked by NSure

yes

no

yes

dunno

–

! NetWare File Syst NWFS

yes efn name note-53 Available only in the NFS namespace.

yes efn name note-53

no

no

yes efn name note-20

yes efn name note-20

yes efn name note-6

dunno

no

no

dunno

–

! Files-11 ODS-2

yes

yes efn name note-18 These are referred to as aliases .

no

yes

no

no

yes

yes

no

no

no

–

! Files-11 ODS-5

yes

yes efn name note-18

no

yes

no

yes

yes

yes

dunno

no

no

–

! Universal Disk Format UDF

yes

yes

yes efn name note-38

yes efn name note-38

yes

yes

no

no

yes

no

no

–

! Veritas File Syst VxFS

yes

yes

yes

no

yes

yes

yes

yes efn name note-70 VxFS provides an optional feature called Storage Checkpoints which allows for advanced file syst snapshots.

dunno

no

no

–

! Fossil (file syst ) Fossil

no

no

no

no

yes

yes

yes

yes

no

no

no

–

! ZFS

yes

yes

yes efn name note-56 ZFS is a transactional filesyst using co