一.创建RAID
1 添加3块硬盘
2 创建raid
[root@localhost ~]# mdadm --create --auto=yes /dev/md10 --level=10 --raid-devices=3 /dev/sdb /dev/sdc /dev/sdd
查看结果：
[root@localhost ~]# mdadm --detail /dev/md10
mdadm: array /dev/md10 started.
/dev/md10:
Version : 0.90
Creation Time : Fri Jan 4 18:26:02 2013
Raid Level : raid10
Array Size : 7864224 (7.50 GiB 8.05 GB)
Used Dev Size : 5242816 (5.00 GiB 5.37 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 10
Persistence : Superblock is persistent
Update Time : Fri Jan 4 18:26:02 2013
State : clean, resyncing
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 64K
Rebuild Status : 80% complete
UUID : eaaabc40:c0c3aeb2:743ed475:5a167feb
Events : 0.1
Number Major Minor RaidDevice State
0 8 16 0 active sync /dev/sdb
1 8 32 1 active sync /dev/sdc
2 8 48 2 active sync /dev/sdd
二.创建LVM
1 创建PV
[root@localhost ~]# pvcreate /dev/md10
查看结果：
Physical volume "/dev/md10" successfully created
2 创建VG
[root@localhost ~]# vgcreate wanghanvg /dev/md10
查看结果：
/dev/hdc: open failed: åªè¯»æ–sful
/dev/cdrom: open failed: åªè¯»æ–¯»æ
Attempt to close device '/dev/cdrom' which is not open.
Volume group "wanghanvg" successfully created
3 创建LV
[root@localhost ~]# lvcreate -n wanghanlv /dev/wanghanvg
查看结果：
Logical volume "lv" created
4 格式化LVM
mkfs.ext3 /dev/wanghanvg/wanghanlv
5 开机启动逻辑卷
vim /etc/fstab
/dev/wanghanvg/wanghanlv /root/wanghan ext3 defaults,usrquota,grpquota 0 0
6 挂载lvm
mkdir wanghan
mount /dev/wanghanvg/wanghanlv /root/wanghan
查看结果：
[root@localhost ~]# cd wanghan
[root@localhost wanghan]# ls
lost+found
三.创建磁盘配额
1 创建用户
vim useradd.sh #新建文件编写创建用户脚本
#!/bin/bash
groupadd wanghan
for username in wanghan1 wanghan2 wanghan3 wanghan4 wanghan5
do
useradd -g wanghan $username
echo "111111" | passwd --stdin $username
done
sh useradd.sh ＃执行脚本
2 创建软连接
[root@localhost ~]# ln -s /home/* /root/wanghan
3 创建配额文件
[root@localhost wanghan]# mount -o remount,usrquota,grpquota /root/wanghan
[root@localhost wanghan]# quotacheck -augv
查看结果：
[root@localhost wanghan]# ls
aquota.group lost+found wanghan2 wanghan4
aquota.user wanghan1 wanghan3 wanghan5
4 配置用户配额
edquota -u wanghan1 ＃编辑用户配额
Disk quotas for user wanghan1 (uid 500):
Filesystem blocks soft hard inodes soft hard
/dev/mapper/vg-lv 0 8000 10000 0 0 0
[root@localhost ~]# edquota -p wanghan1 -u wanghan2
[root@localhost ~]# edquota -p wanghan1 -u wanghan3
[root@localhost ~]# edquota -p wanghan1 -u wanghan4
[root@localhost ~]# edquota -p wanghan1 -u wanghan5
5 开启配额
quotaon -a
6 给用户有写入的权限
chmod 777 root
7 切换用户
su - wanghan1
8 进入到/root/wanghan/wanghan1目录下
[abc1@localhost ~]$ cd /root/wanghan
9 复制文件查看手否超出（软限制）配额
[wanghan1@localhost wanghan1]$ dd if=/dev/zero of=wanghan1.txt bs=1M count=9
查看结果：
10 验证用户是否能超出硬限制
