Unable to Create Image from a Cinder Volume or a Volume Snapshot

ERROR cinder.volume.manager [...] Upload volume to image encountered an error (image-id: 844d5563-13e2-4092-a1e6-287ef6b37db4).: HTTPOverLimit: HTTP 413 Request Entity Too Large: Image storage media is full: There is not enough disk space on the image storage media.

[pf9@test-host1 ~]$ df -hFilesystem                           Size  Used Avail Use% Mounted ondevtmpfs                             126G     0  126G   0% /devtmpfs                                126G  516K  126G   1% /dev/shmtmpfs                                126G  4.1G  122G   4% /runtmpfs                                126G     0  126G   0% /sys/fs/cgroup/dev/mapper/vghroot-lvroot           8.0G  2.5G  5.6G  31% //dev/mapper/vghroot-lvusr            8.0G  1.8G  6.3G  22% /usr/dev/mapper/vghroot-lvopt             50G  2.8G   48G   6% /opt/dev/mapper/vghroot-lvtmp            4.0G   33M  4.0G   1% /tmp/dev/mapper/vghroot-lvvmdat          2.0T   33M  2.0T   1% /opt/vmdata/dev/mapper/vghroot-lvvar             64G   19G   46G  29% /var/dev/mapper/vghroot-lvhome           4.0G   34M  4.0G   1% /hometest-host1-vlan120-3:/OpenStack_Img  5.0T  5.0T   36G 100% /opt/images