简单quota配置实例

简单quota配置实例

 

步骤：

mount挂载（带有usrquota）->quotacheck生成配置文件->edquota编辑配置文件->quotaon生效->quotaoof关闭

1，查看分区
[root@mylab ~]# fdisk -l /dev/sdb           

Disk /dev/sdb: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id System
/dev/sdb1               1          25      200781   83 Linux

2，挂载，加上配额选项
[root@mylab ~]# mount -o usrquota /dev/sdb1 /tmp/    

3，查看/tmp下的内容
[root@mylab ~]# ll /tmp/
total 12
drwx------ 2 root root 12288 May 1 21:14 lost+found

4，用quotacheck生成配额文件
[root@mylab ~]# quotacheck /tmp
[root@mylab ~]# ll /tmp/
total 18
-rw------- 1 root root 6144 May 1 22:54 aquota.user
drwx------ 2 root root 12288 May 1 21:14 lost+found

5，查看挂在分区属性
[root@mylab ~]# mount                      
/dev/sda3 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
/dev/sdb1 on /tmp type ext3 (rw,usrquota)

6，用edquota user 来编辑用户的配额文件，将hard改为10，单位为KB
[root@mylab ~]# edquota lab
Disk quotas for user lab (uid 500):
Filesystem                   blocks       soft       hard     inodes     soft     hard
/dev/sdb1                         0          0         10          0        0        0

7，开启quota
[root@mylab ~]# quotaon /tmp/

8，切换lab用户测试
[root@mylab ~]# su - lab
[lab@mylab ~]$ cd /tmp/
[lab@mylab tmp]$ ls
aquota.user lost+found

9，写一个5KB的空文件，成功
[lab@mylab tmp]$ dd if=/dev/zero of=/tmp/test bs=1024 count=5
5+0 records in
5+0 records out
5120 bytes (5.1 kB) copied, 1e-09 seconds, 5.1 TB/s

10，写一个15KB的文件，提示超出限制
[lab@mylab tmp]$ dd if=/dev/zero of=/tmp/test bs=1024 count=15
sdb1: write failed, user block limit reached.
dd: writing `/tmp/test': Disk quota exceeded
11+0 records in
10+0 records out
10240 bytes (10 kB) copied, 0.00121862 seconds, 8.4 MB/s

11，写出的最大为限额大小
[lab@mylab tmp]$ ll
total 29
-rw------- 1 root root 7168 May 1 23:22 aquota.user
drwx------ 2 root root 12288 May 1 21:14 lost+found
-rw-rw-r-- 1 lab lab 10240 May 1 23:22 test

12，以下为关闭quota测试，没有限制了
[lab@mylab tmp]$ exit
logout
[root@mylab ~]# quotaoff /tmp/
[root@mylab ~]# su - lab
[lab@mylab ~]$ dd if=/dev/zero of=/tmp/test bs=1024 count=15
15+0 records in
15+0 records out
15360 bytes (15 kB) copied, 0.00175783 seconds, 8.7 MB/s
[lab@mylab ~]$ ll /tmp/
total 35
-rw------- 1 root root 7168 May 1 23:24 aquota.user
drwx------ 2 root root 12288 May 1 21:14 lost+found
-rw-rw-r-- 1 lab lab 15360 May 1 23:24 test