/dev/mapper/centos-root expansion

System CentOS 7

2. Df-h view current partition usage;
4. Dfisk/dev/xvda operation of the/DEV/XVDA disk (new partition and formatting)
6. N
8. P
10. Enter the default partition number;
12. Enter the default disk creation start location;
14. Enter the default disk creation end location;
16. T set the partition type
18. 8e LVM Type
20. W Save
22. Restart
24. LVM into LVM Management
26. Lvm>pvcreate/dev/sda3 Creating a logical volume
28. Lvm>vgextend Centos/dev/sda3//Adding an initialized partition to a virtual volume group CentOS
30. lvm>vgdisplay -v
32. lvm>lvextend -l+1298 /dev/mapper/centos-root
34. lvm>pvdisplay   //查看卷容量
36. lvm>quit   
38. Use the command Xfs_growfs/dev/mapper/centos-root to expand the capacity.
40. Df-h after viewing the expansion

/dev/mapper/centos-root expansion