- 参考:
- 注：磁盘类型为 xfs
在fstab文件配置分区，使其可被quota控制
1.打开fstab文件
$ sudo vim /etc/fstab
2.配置分区。预对挂载于home目录下的分区进行空间配额，故在/home对应的行添加,usrquota,grpquota，使quota可控制/home下挂载的分区
#
# /etc/fstab
# Created by anaconda on Thu Jul 4 10:41:38 2019
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=cde78703-f6af-48f8-bb01-900439c3b29a / xfs defaults 0 0
UUID=a9a1f244-644c-495c-a784-1c65c5404847 /boot xfs defaults 0 0
UUID=0716eaaa-8008-460f-911a-19e027c7a675 /home xfs defaults,usrquota,grpquota 0 0
UUID=e173a278-7af7-4e3b-891f-8ecab7d7bf47 swap swap defaults 0 0
3.完成上述步骤后，重启服务器，使配置生效
4.用mount查看配置是否生效.如下，显示/home中包含(usrquota,grpquota)两配置
$ mount | grep '/home'
/dev/sda2 on /home type xfs (rw,relatime,seclabel,attr2,inode64,usrquota,grpquota)
用xfs_quota命令限制用户空间
1.限制用户空间。用户目录在/home目录下，故对挂载/home的分区进行配额。设置软阈值1Gbsoft=1G，硬阈值为2Gbhard=2G, 限制的用户为yhuang
$ sudo xfs_quota -x -c "limit bsoft=1G bhard=2G yhuang" /home
2.硬阈值不可超出。超过软阈值，会受到警告，默认7天，超过时限，软阈值会变为硬阈值
3.普通用户查看阈值限制报告
$ xfs_quota -c 'quota -uvh [user name]' /home
Filesystem Blocks Quota Limit Warn/Time Mounted on
/dev/sda2 2097132 1048576 2097152 00 [6 days] /home
4.超级用户查看阈值报告
$ sudo xfs_quota -x -c "report -ubh" /home
User quota on /home (/dev/sda2)
Blocks
User ID Used Soft Hard Warn/Grace
---------- ---------------------------------
root 0 0 0 00 [------]
yhuang 1.3G 500M 1G 00 [-none-]
usr1 695.8M 0 0 00 [------]
usr2 12K 0 0 00 [------]
