tune2fs命令使用详解
几个常用的参数
-l 查看详细信息
-c 设置自检次数
-I 设置自检天数
-m 设置预留空间
-j 格式转换

[root@rhel4 ~]# tune2fs -l /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: 9f7c895c-88bc-4f33-9b66-2b99214d9ff5
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: resize_inode filetype sparse_super
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 4096
Block count: 16384
Reserved block count: 819
Free blocks: 15723
Free inodes: 4085
First block: 1
Block size: 1024
Fragment size: 1024
Reserved GDT blocks: 63
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2048
Inode blocks per group: 256
Filesystem created: Fri Feb 15 22:05:49 2008
Last mount time: n/a
Last write time: Fri Feb 15 22:05:49 2008
Mount count: 0
Maximum mount count: 33
Last checked: Fri Feb 15 22:05:49 2008
Check interval: 15552000 (6 months)
Next check after: Wed Aug 13 22:05:49 2008
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Default directory hash: tea
Directory Hash Seed: 9dee2fa5-8d27-44a9-b7b3-a4a2a55d2c32
[root@rhel4 ~]# tune2fs -c 1000 /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Setting maximal mount count to 1000
[root@rhel4 ~]# tune2fs -i 30d /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Setting interval between check 2592000 seconds
[root@rhel4 ~]# tune2fs -m 2 /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Setting reserved blocks percentage to 2 (326 blocks)
[root@rhel4 ~]# tune2fs -j /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Creating journal inode: done
This filesystem will be automatically checked every 1000 mounts or
30 days, whichever comes first. Use tune2fs -c or -i to override.
[root@rhel4 ~]# tune2fs -l /dev/ram3
tune2fs 1.35 (28-Feb-2004)
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: 9f7c895c-88bc-4f33-9b66-2b99214d9ff5
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal resize_inode filetype sparse_super
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 4096
Block count: 16384
Reserved block count: 326
Free blocks: 14693
Free inodes: 4085
First block: 1
Block size: 1024
Fragment size: 1024
Reserved GDT blocks: 63
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2048
Inode blocks per group: 256
Filesystem created: Fri Feb 15 22:05:49 2008
Last mount time: n/a
Last write time: Fri Feb 15 22:08:21 2008
Mount count: 0
Maximum mount count: 1000
Last checked: Fri Feb 15 22:05:49 2008
Check interval: 2592000 (1 month)
Next check after: Sun Mar 16 22:05:49 2008
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 9dee2fa5-8d27-44a9-b7b3-a4a2a55d2c32
Journal backup: inode blocks