linux expand hard disk capacity

The Linux system is CentOS7. Because the hard disk space was insufficient before, the original hard disk of the virtual machine was expanded by 1T capacity.
Achieving the goal: Add the new capacity to centos-home.

After practice, the simplest steps: 1.    Enter n, p, w in
fdisk /dev/sda to create a new primary partition /dev/sda3. 2. Reread the partition and add PV to the volume group    partprobe    vgextend centos /dev/sda3 3. Expand the logical volume    lvextend -l +100%FREE /dev/centos/home 4. Adjust the size of the xfs format file system    xfs_growfs /dev/centos/ home