파일시스템별 스펙비교

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발췌 : http://en.wikipedia.org/wiki/Comparison_of_file_systems

 

 

 

File system Creator Introduced in Original operating system
DECtape DEC 1964 PDP-6 Monitor
Level-D DEC 1968 TOPS-10
V6FS Bell Labs 1972 Version 6 Unix
RT-11 DEC 1973 RT-11
Disk Operating System (GEC DOS) GEC 1973 Core Operating System
GEC DOS filing system extended GEC 1977 OS4000
FAT12 Microsoft 1977 Microsoft Disk BASIC
V7FS Bell Labs 1979 Version 7 Unix
ODS-2 DEC 1979 OpenVMS
DFS Acorn Computers Ltd 1982 Acorn BBC Micro MOS
FFS Kirk McKusick 1983 4.2BSD
MFS Apple Computer 1984 Mac OS
HFS Apple Computer 1985 Mac OS
Amiga OFS54 Metacomco for Commodore 1985 Amiga OS
NWFS Novell 1985 NetWare 286
Amiga FFS Commodore 1987 Amiga OS 1.3
FAT16 Microsoft 1987 MS-DOS 3.31
Minix V1 FS Andrew S. Tanenbaum 1987 Minix 1.0
HPFS IBM & Microsoft 1988 OS/2
JFS IBM 1990 AIX11
VxFS VERITAS 1991 SVR4.0
AdvFS DEC Before 1993 Digital Unix
NTFS Microsoft, Gary Kimura, Tom Miller 1993 Windows NT
LFS Margo Seltzer 1993 Berkeley Sprite
ext2 Rémy Card 1993 Linux
UFS1 Kirk McKusick 1994 4.4BSD
XFS SGI 1994 IRIX
UDF ISO/ECMA/OSTA 1995 -
FAT32 Microsoft 1996 Windows 95b10
QFS Sun Microsystems 1996 Solaris
GPFS IBM 1996 AIX,Linux
Be File System Be Inc., D. Giampaolo, C. Meurillon 1996 BeOS
Minix V2 FS Andrew S. Tanenbaum 1997 Minix 2.0
HFS Plus Apple 1998 Mac OS 8.1
NSS Novell 1998 NetWare 5
PolyServe File System (PSFS) PolyServe 1998 Windows, Linux
ODS-5 DEC 1998 OpenVMS 7.2
ext3 Stephen Tweedie 1999 Linux
JFS2 IBM 1999 OS/2 WSeB
GFS Sistina (Red Hat) 2000 Linux
ReiserFS Namesys 2001 Linux
FATX Microsoft 2002 Xbox
UFS2 Kirk McKusick 2002 FreeBSD 5.0
OCFS Oracle Corporation 2002 Linux
VMFS2 VMware 2002 ESX
Fossil Bell Labs 2003 Plan 9 from Bell Labs 4
Google File System Google 2003 Linux
ZFS Sun Microsystems 2004 Solaris
Reiser4 Namesys 2004 Linux
Minix V3 FS Andrew S. Tanenbaum 2005 MINIX 3
OCFS2 Oracle Corporation 2005 Linux
NILFS NTT 2005 Linux
VMFS3 VMware 2005 ESX
GFS2 Red Hat 2006 Linux
ext4 Andrew Morton 2006 Linux
File system Creator Introduced in Original operating system

[edit] Limits

Maximum filename length Allowable characters in directory entries25 Maximum pathname length Maximum file size Maximum volume size 4
DECtape 6.3 A-Z, 0-9 DTxN:FILNAM.EXT = 15 369,280 bytes (577 * 640) 369,920 Bytes (578 * 640)
Level-D 6.3 A-Z, 0-9 DEVICE:FILNAM.EXT[PROJCT,PROGRM] = 7 + 10 + 15 = 32; + 5*7 for SFDs = 67 34,359,738,368 words (2**35-1); 206,158,430,208 SIXBIT bytes Approx 12 GB (64 * 178MB)
RT-11 12 bytes A-Z, 0-9, $ 16 bytes 33,554,432 bytes (65536 * 512) 33,554,432 Bytes
V6FS 14 bytes 24 Any byte except NUL and / 26 No limit defined 12 8MiB 57 2TiB
Disk Operating System (GEC DOS)  ?  ?  ?  ? at least 131072 bytes  ?
GEC DOS filing system extended 8 bytes A-Z, 0-9. Period was directory separator  ? No limit defined (workaround for OS limit)  ? at least 131072 bytes  ?
V7FS 14 bytes 24 Any byte except NUL and / 26 No limit defined 12 1GiB 58 2TiB
FAT12 255 bytes 24 Any Unicode except NUL 24 26 No limit defined 12 32MiB 1MiB to 32MiB
FAT16 255 bytes 24 Any Unicode except NUL 24 26 No limit defined 12 2GiB 16MiB to 4GiB
FATX 42 bytes 24 ASCII. Unicode not permitted. No limit defined 12 2GiB 16MiB to 2GiB
Fossil  ?  ?  ?  ?  ?
MFS 255 bytes Any byte except : No path (flat filesystem) 256MiB 256MiB
HFS 31 bytes Any byte except : Unlimited 2GiB 2TiB
FAT32 255 bytes 24 Any Unicode except NUL 24 26 No limit defined 12 4GiB 512MiB to 2TiB 7
HPFS 255 bytes Any byte except NUL 27 No limit defined 12 2GiB 2TiB13
NTFS 254 characters + "." Any Unicode except NUL, / or : 32,767 Unicode characters with each path component (directory or filename) up to 255 characters long 12 16EiB 55 16EiB 55
HFS Plus 255 UTF-16 characters 1 Any valid Unicode 2 26 Unlimited 16EiB 16EiB 71
FFS 255 bytes Any byte except NUL 26 No limit defined 12 4GiB 256TiB
UFS1 255 bytes Any byte except NUL 26 No limit defined 12 4GiB to 256TiB 256TiB
UFS2 255 bytes Any byte except NUL 26 No limit defined 12 512GiB to 32PiB 1YiB
ext2 255 bytes Any byte except NUL 26 No limit defined 12 16GiB to 2TiB4 2TiB to 32TiB
ext3 255 bytes Any byte except NUL 26 No limit defined 12 16GiB to 2TiB4 2TiB to 32TiB
ext4 Any byte except NUL 26 No Limit defined 12 16GiB to 2TiB4 1024 PiB
GPFS 255 (?) Any byte except NUL 26 No limit defined 12 No limit found 299 Bytes (2PiB tested)
GFS 255 Any byte except NUL 26 No limit defined 12 2TB to 8EB63 2TB to 8EB63
ReiserFS 4032 bytes/255 characters Any byte except NUL 26 No limit defined 12 8TiB8 (v3.6), 4GiB (v3.5) 16TiB
Reiser4 3976 bytes Any byte except / and NUL No limit defined 12 8TiB on x86  ?
OCFS 255 bytes Any byte except NUL 26 No limit defined 12 8TiB 8TiB
OCFS2 255 bytes Any byte except NUL 26 No limit defined 12 4PiB 4PiB
XFS 255 bytes Any byte except NUL 26 No limit defined 12 8EiB9 8EiB9
JFS 255 bytes Any byte except NUL 26 No limit defined 12 8EiB 512TiB to 4PiB
JFS2 255 bytes Any Unicode except NUL No limit defined 12 4PiB 32PiB
QFS 255 bytes Any byte except NUL 26 No limit defined 12 16EiB 72 4PiB 72
BFS 255 bytes Any byte except NUL 26 No limit defined 12 12288 bytes to 260GiB3 256PiB to 2EiB
AdvFS 255 characters Any byte except NUL 26 No limit defined 12 16TiB 16TiB
NSS 256 characters Depends on namespace used 28 Only limited by client 8TiB 8TiB
NWFS 80 bytes 52 Depends on namespace used 28 No limit defined 12 4GiB 1TiB
ODS-5 236 bytes15  ? 4096 bytes16 1TiB 1TiB
VxFS 255 bytes Any byte except NUL 26 No limit defined 12 16EiB  ?
UDF 255 bytes Any Unicode except NUL 1023 bytes 43 16EiB  ?
ZFS 255 bytes Any Unicode except NUL No limit defined 12 16EiB 268EiB (2128 Bytes)
Minix V1 FS 14 or 30 bytes, set at filesystem creation time Any byte except NUL 26 No limit defined 12 1GiB 1GiB
Minix V2 FS 14 or 30 bytes, set at filesystem creation time Any byte except NUL 26 No limit defined 12 1GiB 1GiB
Minix V3 FS 60 bytes Any byte except NUL 26 No limit defined 12 4GiB 4GiB
VMFS2 128 Any byte except NUL and / 26 2048 4TiB 74 64TiB
VMFS3 128 Any byte except NUL and / 26 2048 2TiB 74 64TiB
Maximum filename length Allowable characters in directory entries25 Maximum pathname length Maximum file size Maximum volume size 4

[edit] Metadata

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 Checksum/ ECC
GPFS Yes Yes Yes Yes Yes No Yes Yes Yes Yes
DECtape No No Yes No No No No No No No
Level-D Yes Yes Yes Yes Yes Yes Yes No No No
RT-11 No No No Yes Yes No No No No No
V6FS Yes Yes No Yes Yes No No No No No
V7FS Yes Yes No Yes Yes No No No No No
FAT12 No No Yes Yes No[1] No No No No 22 No
FAT16 No No Yes Yes No[1] No No No No 22 No
FAT32 No No Yes Yes No[1] No No No No No
HPFS Yes14 No Yes Yes No No No  ? Yes No
NTFS Yes No5 Yes Yes Yes No Yes  ? Yes No
HFS No No Yes No No Yes No No Yes No
HFS Plus Yes Yes Yes Yes Yes Yes Yes  ? Yes No
FFS Yes Yes No Yes Yes No No No No No
UFS1 Yes Yes No Yes Yes No Yes 33 Yes 33 No 32 No
UFS2 Yes Yes Yes Yes Yes No Yes 33 Yes 33 Yes No
LFS Yes Yes No Yes Yes No No No No No
ext2 Yes Yes No Yes Yes No Yes 23 Yes 23 Yes No
ext3 Yes Yes No Yes Yes No Yes 23 Yes 23 Yes No
ext4 Yes Yes No Yes Yes No Yes 23 Yes 23 Yes No
GFS Yes Yes No Yes Yes No Yes 23 Yes 23 Yes No
ReiserFS Yes Yes No Yes Yes No Yes 23 Yes 23 Yes No
Reiser4 Yes Yes No Yes Yes No No No No No
OCFS No Yes No No Yes Yes No No No No
OCFS2 Yes Yes No Yes Yes No No No No No
XFS Yes Yes No Yes Yes No Yes Yes 23 Yes No
JFS Yes Yes Yes Yes Yes No Yes Yes Yes No
QFS Yes Yes Yes Yes Yes Yes Yes No Yes No
BFS Yes Yes Yes No No No No No Yes No
AdvFS Yes Yes No Yes Yes No Yes No Yes No
NSS Yes Yes Yes31 Yes31 Yes Yes31 Yes  ? Yes19 29 No
NWFS Yes  ? Yes31 Yes31 Yes Yes31 Yes  ? Yes19 29 No
ODS-5 Yes Yes Yes  ?  ? Yes Yes  ? Yes 17 No
VxFS Yes Yes Yes Yes Yes No Yes  ? Yes 23 No
UDF Yes Yes Yes Yes Yes Yes Yes No Yes No
Fossil Yes Yes 61 No Yes Yes No No No No No
ZFS Yes Yes Yes Yes Yes Yes Yes No 69 Yes 60 Yes
VMFS2 Yes Yes No Yes Yes No No No No No
VMFS3 Yes Yes No Yes Yes No No No No No
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 Checksum/ECC

[edit] Features

Hard links Soft links Block journaling or Metadata-only journaling Case-sensitive Case-preserving File Change Log Incremental snapshots XIP File system encryption
DECtape No No No No No No No No No No
Level-D No No No No No No No No No No
RT-11 No No No No No No No No No No
V6FS Yes No No No Yes Yes No No No No
V7FS Yes No 59 No No Yes Yes No No No No
FAT12 No No No No No No No No No No
FAT16 No No No No No Partial No No No No
FAT32 No No No No No Partial No No No No
HPFS No No No No No Yes No  ? No No
NTFS Yes Partial34 No37 Yes37 Yes36 Yes Yes Yes  ? Yes
HFS Plus Partial Yes No Yes48 Partial35 Yes Yes64 No No No77
FFS Yes Yes No No Yes Yes No No No No
UFS1 Yes Yes No No Yes Yes No No No No
UFS2 Yes Yes No No66 Yes Yes No Yes  ? No
LFS Yes Yes Yes38 No Yes Yes No Yes No No
ext2 Yes Yes No No Yes Yes No No Yes65 No
ext3 Yes Yes Yes 62 Yes Yes Yes No No  ? No
ext4 Yes Yes Yes 62 Yes Yes Yes No No  ? No
ReiserFS Yes Yes Yes 44 Yes Yes Yes No No  ? No
Reiser4 Yes Yes Yes No Yes Yes No  ?  ? Yes 50
OCFS No Yes No No Yes Yes No No No No
OCFS2 Yes Yes Yes Yes Yes Yes No No No No
XFS Yes Yes No Yes Yes 40 Yes Yes No  ? No
JFS Yes Yes No Yes Yes30 Yes No  ?  ? No
QFS Yes Yes No No Yes Yes No No No No
Be File System Yes Yes No Yes Yes Yes  ?  ? No No
NSS Yes Yes  ? Yes Yes20 Yes20 Yes6 Yes No Yes
NWFS Yes53 Yes53 No No Yes20 Yes20 Yes6  ? No No
ODS-2 Yes Yes18 No Yes No No Yes Yes No No
ODS-5 Yes Yes18 No Yes No Yes Yes Yes  ? No
UDF Yes Yes Yes38 Yes38 Yes Yes No No Yes No
VxFS Yes Yes Yes No Yes Yes Yes Yes70  ? No
Fossil No No No No Yes Yes Yes Yes No No
ZFS Yes Yes Yes56 No56 Yes Yes No Yes No No
VMFS2 Yes Yes No Yes Yes Yes No No No No
VMFS3 Yes Yes No Yes Yes Yes No No No No
Hard links Soft links Block journaling or Metadata-only journaling Case-sensitive Case-preserving File Change Log Incremental snapshots XIP File system encryption

[edit] Allocation and layout policies

Tail packing Transparent compression Block suballocation Allocate-on-flush Extents Variable file block size 41 Sparse files
DECtape No No No No No No No
Level-D No No Yes No Yes No No
V6FS No No No No No No No
V7FS No No No No No No No
FAT12 No No 51 No No No No No
FAT16 No No 51 No No No No No
FAT32 No No No No No No No
HPFS No No No No Yes No No
NTFS No Yes Partial No Yes No Yes
HFS Plus No No No No Yes No Yes
FFS No No 8:1 45 No No No  ?
UFS1 No No 8:1 45 No No No Yes
UFS2 No No 8:1 45 No No Yes Yes
LFS No No 8:1 45 No No No Yes
ext2 No No 49 No 47 No No No Yes
ext3 No No No 47 No No No Yes
ext4 No No No 47 Yes Yes No Yes
ReiserFS Yes No Yes 73 No No No Yes
Reiser4 Yes Yes 50 Yes 73 Yes Yes 39 No Yes
OCFS No No No No Yes No  ?
OCFS2 No No No No Yes No  ?
XFS No No No Yes Yes No Yes
JFS No No Yes No Yes No Yes
QFS No No Yes No No No  ?
BFS No No No No Yes No  ?
NSS No Yes No No Yes No  ?
NWFS No Yes Yes 42 No No No  ?
ODS-5 No No No No Yes No  ?
VxFS No No  ? No Yes No Yes
UDF No No No  ? 46 Yes No No
Fossil No Yes No No No No  ?
ZFS Partial 68 Yes  ? Yes 67 No Yes  ?
VMFS2 No No Yes No No No Yes
VMFS3 No No Yes No No No Yes
Tail packing Transparent compression Block suballocation Allocate-on-flush Extents Variable file block size 41 Sparse files
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