1、[root@localhost ~]# fdisk /dev/sdb （fdisk/dev/sdc）（fdisk/dev/sdd）
Welcome to the fdisk (util-Linux 2.23.2) .
Change will stay in memory until you decide to write the changes to disk.
Please think twice before using the write command.
Device does not contain a recognized partition table
Use disk identifier 0xcc7d50b6 create a new DOS disk label.
Command ( input m to get help ) : n-
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4 , default 1) :
Starting sector (2048-167772159 defaults to 2048) :
We will use the default value 2048
Last sector , + a sector or size + {K, M, G} (2048-167772159 , default 167 772 159) : + 20G
Partition 1 is set to Linux type, size to 20 GiB
Command ( input m to get help ) : n-
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p):
Using default response p
Partition number (2-4 , default 2) :
Starting sector (41945088-167772159 defaults to 41945088) :
We will use the default value 41,945,088
Last sector , + a sector or size + {K, M, G} (41945088-167772159 , default 167 772 159) : + 20G
Partition 2 is set to Linux type, size to 20 GiB
Command ( input m to get help ) : n-
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p):
Using default response p
Partition number (3,4 , default 3) :
Starting sector (83888128-167772159 defaults to 83888128) :
We will use the default value 83,888,128
Last sector , + a sector or size + {K, M, G} (83888128-167772159 , default 167 772 159) : + 20G
Partition 3 is set to Linux type, size to 20 GiB
Command ( input m to get help ) : WQ
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 30G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 29.5G 0 part
├─centos-root 253:0 0 27.5G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 80G 0 disk
├─sdb1 8:17 0 20G 0 part
├─sdb2 8:18 0 20G 0 part
└─sdb3 8:19 0 20G 0 part
sdc 8:32 0 40G 0 disk
├─sdc1 8:33 0 20G 0 part
├─sdc2 8:34 0 5G 0 part
└─sdc3 8:35 0 5G 0 part
sdd 8:48 0 40G 0 disk
├─sdd1 8:49 0 20G 0 part
├─sdd2 8:50 0 5G 0 part
└─sdd3 8:51 0 5G 0 part
sr0 11:0 1 4G 0 rom /run/media/root/CentOS 7 x86_64
[root@localhost ~]# mdadm -Cv /dev/md5 -l5 -n3 /dev/sd[bcd]1
mdadm: layout defaults to left-symmetric
mdadm: layout defaults to left-symmetric
mdadm: chunk size defaults to 512K
mdadm: size set to 20955136K
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md5 started.
[root@localhost ~]# pvcreate /dev/md5
Physical volume "/dev/md5" successfully created
[root@localhost ~]# vgcreate myvg /dev/md5
Volume group "myvg" successfully created
[root@localhost ~]# lvcreate -L 50 -n mylv myvg
Rounding up size to full physical extent 52.00 MiB
Logical volume "mylv" created.
[root@localhost ~]# mkfs -t xfs /dev/myvg/mylv
log stripe unit (524288 bytes) is too large (maximum is 256KiB)
log stripe unit adjusted to 32KiB
meta-data = / dev / myvg / mylv help = 256 agcount = 2, agsize = 6528 blks
= sectsz=512 attr=2, projid32bit=1
Crc = 0 = 0 = finobt
data = bsize=4096 blocks=13056, imaxpct=25
= sunit=128 swidth=256 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=624, version=2
= sectsz=512 sunit=8 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
2, the installation Apache (step omitted)
3, users need the / dev / myvg / mylv logical way to mount the disk quota support to the next page directory ( / usr / local / the Apache / htdocs )
[root@localhost ~]# mount -o usrquota,grpquota /dev/myvg/mylv /usr/local/apache/htdocs/
4, create a test file in the web directory index.html , content for the user name, access through a browser test
[root@localhost ~]# ls /usr/local/apache/htdocs/
[root@localhost ~]# cd /usr/local/apache/htdocs/
[root@localhost htdocs]# touch index.html
[root@localhost htdocs]# ls
index.html
[root@localhost htdocs]# vi index.html
5, create a user account for LVM configure disk quota soft limit user disk capacity of 80M , hard limit 100M ; soft limit the number of files 100 Ge, hard limit of 80 Ge.
[root@localhost ~]# useradd litianyang
[root@localhost ~]# quotacheck -avug
quotacheck: Skipping /dev/mapper/myvg-mylv [/usr/local/apache/htdocs]
quotacheck: Cannot find filesystem to check or filesystem not mounted with quota option.
[root@localhost ~]# quotaon -avug
[root@localhost ~]# edquota -u litianyang
