Virtual machine resize Disk Volume Group

KVM
[crayon-662fae33ce006531502993/]
Important for us
[crayon-662fae33ce010860798690/]
[crayon-662fae33ce012060631605/]
**>> Free PE / Size 5120 / 20.00 GiB

So Firstly we are extending volume group
# lvextend -l +5120 /dev/telekom_kutayzorlu_com-vg/root

After Resize to see Action in Disk Size Now
# resize2fs /dev/telekom_kutayzorlu_com-vg/root

If you are using XFS file format it will give error  so use that 
# xfs_growfs /dev/telekom_kutayzorlu_com-vg/root
[crayon-662fae33ce015665654802/]