linux系统管理 使用磁盘配额

/dev/sdb1 /mnt/sd1 ext3 rw,usrquota,grpquota 0 0

[root@localhost root]# quotacheck –cvuga <-------

quotacheck: Scanning /dev/sdb1 [/mnt/sd1] done
quotacheck: Checked 2 directories and 0 files

[root@localhost root]# ls /mnt/sd1/

aquota.group aquota.user lost found

aquota.group 和aquota.user两个数据文件,用来分配组和用户的配额情况.

[root@localhost root]# quotaon 或reboot或quotaon /dev/sdb1

[root@localhost root]# edquota -u redhat

Disk quotas for user redhat (uid 502):

Filesystem blocks soft hard inodes soft hard

/dev/sdb1 125 10 0 80 0 10

注：blocks表示：块的数量；inodes表示：节点的数量或建立文件的个数；
soft表示：软限制,可以超过这个数值的设定,但是有天数限制；

hard表示：硬限制,这是一个任何时候也不能超过的数值,永远不可能达到.

[root@localhost root]# ls /mnt/sd1

aquota.group aquota.user lost found

[root@localhost root]# mkdir /mnt/sd1/redhat

[root@localhost root]# chown redhat /mnt/sd1/redhat/

[root@localhost root]# su - redhat

[redhat@localhost redhat]$ pwd

/home/redhat

[redhat@localhost redhat]$ cd /mnt/sd1/redhat/

[redhat@localhost redhat]$ pwd
/mnt/sd1/redhat

[redhat@localhost redhat]$ quota

Disk quotas for user redhat (uid 502):

Filesystem blocks quota limit grace files quota limit grace

/dev/sdb1 4 10 0 1 0 9

[redhat@localhost redhat]$ ls -lh

total 8.0K

drwxrwxr-x 2 redhat redhat 4.0K Mar 12 22:41 dir
drwxrwxr-x 2 redhat redhat 4.0K Mar 12 22:41 dir1

[redhat@localhost redhat]$ ls -ld

drwxr-xr-x 4 redhat root 4096 Mar 12 22:41 .

[redhat@localhost redhat]$ dd if=/dev/zero of=file1 bs=1k count=1024

1024 0 records in

1024 0 records out

[redhat@localhost redhat]$ quota -u redhat

Disk quotas for user redhat (uid 502):

Filesystem blocks quota limit grace files quota limit grace

/dev/sdb1 1040* 10 0 6days 4 0 9
[redhat@localhost redhat]$ touch file1

[redhat@localhost redhat]$ touch file2

[redhat@localhost redhat]$ touch file3

[redhat@localhost redhat]$ touch file4

[redhat@localhost redhat]$ touch file5

[redhat@localhost redhat]$ ls

file1 file2 file3 file4 file5
[redhat@localhost redhat]$ quota -u redhat

Disk quotas for user redhat (uid 502):

Filesystem blocks quota limit grace files quota limit grace

/dev/sdb1 1032* 10 0 6days 6 0 9
[redhat@localhost redhat]$ touch file6

[redhat@localhost redhat]$ touch file7

[redhat@localhost redhat]$ touch file8

[redhat@localhost redhat]$ touch file9

sd(8,17): write failed, user file limit reac

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