[ovirt-users] ovirt disk extend

We are using Ovirt4.1 we are facing an issues in regards to one of vm disk. While creating vm we have add 120GB of disk as Thin Provision after like few week we want to have more disk using extend size by GB we add 160GB it is showing at ovirt console right size 280GB. But if we login to vm it show origanl size of the disk which creating what we have commited.( https://access.redhat.com/solutions/697303) df -HTP Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/rhel-root xfs 120G 119G 923M 100% / devtmpfs devtmpfs 8.4G 0 8.4G 0% /dev tmpfs tmpfs 8.4G 13k 8.4G 1% /dev/shm tmpfs tmpfs 8.4G 8.9M 8.4G 1% /run tmpfs tmpfs 8.4G 0 8.4G 0% /sys/fs/cgroup /dev/sda1 xfs 1.1G 200M 865M 19% /boot tmpfs tmpfs 1.7G 0 1.7G 0% /run/user/0 Any advise on this issues. --