Allocation and Layout Policies
File system | Block suballocation | Variable file block size | Extents | Allocate-on-flush | Sparse files | Transparent compression |
---|---|---|---|---|---|---|
CBM DOS | No | Partial | No | No | No | No |
CP/M filesystem | No | No | Yes | No | Yes | No |
Btrfs | Yes | No | Yes | Yes | Yes | Yes |
DECtape | No | No | No | No | No | No |
Level-D | Yes | No | Yes | No | No | No |
DOS (GEC) | No | Yes | Yes | No | No | No |
OS4000 | No | Yes | Yes | No | No | No |
V6FS | No | No | No | No | Yes | No |
V7FS | No | No | No | No | Yes | No |
FAT12 | No | No | No | No | No | No |
FAT16 | No | No | No | No | No | No |
FAT32 | No | No | No | No | No | No |
exFAT | Unknown | No | No | Unknown | No | No |
GFS | Partial | No | No | No | Yes | No |
HPFS | No | No | Yes | No | No | No |
NTFS | Partial | No | Yes | No | Yes | Partial |
HFS Plus | No | No | Yes | Yes | No | Yes |
FFS | 8:1 | No | No | No | Yes | No |
UFS1 | 8:1 | No | No | No | Yes | No |
UFS2 | 8:1 | Yes | No | No | Yes | No |
LFS | 8:1 | No | No | No | Yes | No |
ext2 | No | No | No | No | Yes | No |
ext3 | No | No | No | No | Yes | No |
ext3cow | No | No | No | No | Yes | No |
ext4 | No | No | Yes | Yes | Yes | No |
Lustre | No | No | Yes | Yes | Yes | No |
NILFS | No | No | No | Yes | Yes | No |
ReiserFS | Yes | No | No | No | Yes | No |
Reiser4 | Yes | No | Yes | Yes | Yes | Yes |
OCFS | No | No | Yes | No | Unknown | No |
OCFS2 | No | No | Yes | No | Yes | No |
Reliance | No | No | No | No | No | No |
Reliance Nitro | No | No | Yes | No | Yes | No |
XFS | No | No | Yes | Yes | Yes | No |
JFS | Yes | No | Yes | No | Yes | only in JFS1 on AIX |
QFS | Yes | No | No | No | Unknown | No |
BFS | No | No | Yes | No | Unknown | No |
NSS | No | No | Yes | No | Unknown | Yes |
NWFS | Yes | No | No | No | Unknown | Yes |
ODS-5 | No | No | Yes | No | Unknown | No |
VxFS | Unknown | No | Yes | No | Yes | No |
UDF | No | No | Yes | Depends | No | No |
Fossil | No | No | No | No | Unknown | Yes |
VMFS2 | Yes | No | No | No | Yes | No |
VMFS3 | Yes | No | Yes | No | Yes | No |
ZFS | Partial | Yes | No | Yes | Yes | Yes |
PramFS | No | No | No | No | Yes | No |
File system | Block suballocation | Variable file block size | Extents | Allocate-on-flush | Sparse files | Transparent compression |
Read more about this topic: Comparison Of File Systems
Famous quotes containing the word policies:
“Modern women are squeezed between the devil and the deep blue sea, and there are no lifeboats out there in the form of public policies designed to help these women combine their roles as mothers and as workers.”
—Sylvia Ann Hewitt (20th century)