quota磁盘配额

[root@localhost ~]# rpm -qa | grep quota
quota-3.17-23.el6.x86_64

[root@localhost ~]# vgs
  VG       #PV #LV #SN Attr   VSize  VFree 
  VolGroup   2   3   0 wz--n- 97.65g 16.82g
  vms        2   2   0 wz--n- 97.65g 17.65g

[root@localhost ~]# lvcreate -L 10G -n quota_demo vms  //新建lv用作测试
  Logical volume "quota_demo" created.

[root@localhost ~]# lvs
  LV         VG       Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert                                                 
  quota_demo vms      -wi-a----- 10.00g                                                                                                     
[root@localhost ~]# mkfs.ext4 /dev/vms/quota_demo 

[root@localhost ~]# mkdir /quota_demo  //挂载点
[root@localhost ~]# mount /dev/mapper/vms-quota_demo /quota_demo/
[root@localhost ~]# echo "/dev/mapper/vms-quota_demo /quota_demo ext4 defaults,usrquota,grpquota 1 2" >> /etc/fstab
[root@localhost ~]# mount -a
[root@localhost ~]# mount -o remount /quota_demo/
[root@localhost ~]# mount -l
/dev/mapper/vms-quota_demo on /quota_demo type ext4 (rw,usrquota,grpquota)

[root@localhost ~]# quotacheck -vug /quota_demo/　　//生成用户与组的磁盘配额数据库 也可使用-vu 或 -vg 单独生成 aquota.user aquota.group,可能需要关闭selinux，setenforce 0
[root@localhost ~]# ll /quota_demo/
[root@localhost ~]# useradd quota_demo    //创建测试用户
[root@localhost ~]# quotaon /quota_demo/  //开启分区配额
[root@localhost ~]# setquota quota_demo 50M 200M 0 0 /quota_demo  //设置quota_demo用户在测试分区的磁盘使用额, 50M 100M分别为Blocks的软硬配额,0 0为inodes,单位也可使用G,T
[root@localhost ~]# edquota quota_demo //查看

 

[quota_demo@localhost quota_demo]$ dd if=/dev/zero of=dd.iso bs=1M count=150
dm-5: warning, user block quota exceeded.
记录了150+0 的读入
记录了150+0 的写出
157286400字节(157 MB)已复制，0.172823 秒，910 MB/秒
[quota_demo@localhost quota_demo]$ dd if=/dev/zero of=dd1.iso bs=1M count=150
dm-5: write failed, user block limit reached.
dd: 正在写入"dd1.iso": 超出磁盘限额
记录了51+0 的读入
记录了50+0 的写出
52428800字节(52 MB)已复制，0.0658396 秒，796 MB/秒