1.创建PV物理卷
[root@localhost ~]# pvcreate /dev/sda4 /dev/sda5 /dev/sda6 /dev/sda7
Physical volume “/dev/sda4” successfully created
Physical volume “/dev/sda5” successfully created
Physical volume “/dev/sda6” successfully created
Physical volume “/dev/sda7” successfully created
2.创建VG卷组
[root@localhost ~]# vgcreate vg_data /dev/sda4 /dev/sda5 /dev/sda6 /dev/sda7
Volume group “vg_data” successfully created
3.查看卷组信息
[root@localhost ~]# vgdisplay
— Volume group —
VG Name vg_data
System ID
Format lvm2
Metadata Areas 4
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 4
Act PV 4
VG Size 3.00 TiB
PE Size 4.00 MiB
Total PE 787436
Alloc PE / Size 0 / 0
Free PE / Size 787436 / 3.00 TiB
VG UUID Ee9ybc-nWcJ-zQeA-o4VS-o2JK-3m9A-y8BR8r
3.按照PE大小创建逻辑卷
lvcreate -l 787436 -n lv_data vg_data
4.格式化逻辑卷
mkfs.ext4 /dev/mapper/vg_data-lv_data
5.查看逻辑卷UUID
[root@localhost ~]# blkid
/dev/sda2: UUID=”fc5f54a3-f6c9-49bd-8dd2-a536de2b8370″ TYPE=”ext4″
/dev/sda1: SEC_TYPE=”msdos” UUID=”99FB-7635″ TYPE=”vfat”
/dev/sda3: UUID=”3e5deca5-7b13-4630-83bd-97223a796e2d” TYPE=”swap”
/dev/sda4: UUID=”iKfv7K-NMgT-y99g-AC8i-uYLb-e3f0-6DdVjL” TYPE=”LVM2_member”
/dev/sda5: UUID=”68t2lx-NJSS-TeXe-gjIr-GIqw-hBr1-MeAweb” TYPE=”LVM2_member”
/dev/sda6: UUID=”0lH7h8-NpiS-j2Zw-vZR9-3E2G-0t7K-mAqdLm” TYPE=”LVM2_member”
/dev/sda7: UUID=”WLafSq-Sznd-tD7S-b8oS-s7sn-pdP1-rxYVdx” TYPE=”LVM2_member”
/dev/mapper/vg_data-lv_data: UUID=”7d816a72-1797-4746-b48b-594ffa954fe4″ TYPE=”ext4″
6.创建挂载目录
mkdir /u01
7.写入/etc/fstab
UUID=7d816a72-1797-4746-b48b-594ffa954fe4 /u01 ext4 defaults 1 2
8.挂载文件系统
mount -a
9.验证结果
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 753G 2.5G 713G 1% /
tmpfs 32G 72K 32G 1% /dev/shm
/dev/sda1 200M 260K 200M 1% /boot/efi
/dev/mapper/vg_data-lv_data
3.0T 200M 2.9T 1% /u01
10.删除逻辑卷(适用于新创建)
[root@localhost ~]# lvremove /dev/mapper/vg_data-lvol0
Do you really want to remove active logical volume lvol0? [y/n]: y
Logical volume “lvol0” successfully removed