CentOS7下使用growpart工具进行磁盘热扩容

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
yum search growpart
yum install cloud-utils-growpart.x86_64

fdisk -l
growpart -h
growpart /dev/sda 5
lsblk

pvdisplay 
pvresize /dev/sda5
vgdisplay 
lvextend -l +100%FREE /dev/vg_centos/lv_data
lvdisplay 
lsblk
df -PTh
xfs_growfs /dev/mapper/vg_centos-lv_data