1 创建磁盘分区
fdisk /dev/sdb
2 检查磁盘类型
fdisk -l
pvcreate /dev/sdb1
pvcreate /dev/sdb2
pvcreate /dev/sdb3
pvdisplay
pvremove /dev/sdb1
3 创建VG
vgcreate volume-group1 /dev/sdb1 /dev/sdb2 /dev/sdb3
vgdisplay
4 删除VG
vgremove volume-group1
5 扩展VG
pvcreate /dev/sdc2
vgextend volume-group1 /dev/sdc2
vgreduce volume-group1 /dev/sdc2
6 创建LV
lvcreate -L 100M -n lv1 volume-group1
lvdisplay
mkfs.ext4 /dev/volume-group1/dsg
mkdir /dsg
mount /dev/volume-group1/dsg /dsg
umount /dsg
lvresize -L 200M /dev/volume-group1/dsg
resize2fs /dev/volume-group1/dsg
lvdisplay
7 缩减LV
umount /dev/volume-group1/dsg
e2fsck -f /dev/volume-group1/dsg
resize2fs /dev/volume-group1/lv1 100M
lvresize -L 100M /dev/volume-group1/lv1
lvdisplay