[ovirt-users] What is this error message from?

I have seen this error message repeatedly when reviewing events. VDSM vmh.cyber-range.lan command HSMGetAllTasksStatusesVDS failed: low level Image copy failed: ("Command ['/usr/bin/qemu-img', 'convert', '-p', '-t', 'none', '-T', 'none', '-f', 'raw', u'/rhev/data-center/mnt/glusterSD/storage.cyber-range.lan:_vmstore/dd69364b-2c02-4165-bc4b-2f2a3b7fc10d/images/c651575f-75a0-492e-959e-8cfee6b6a7b5/9b5601fe-9627-4a8a-8a98-4959f68fb137', '-O', 'qcow2', '-o', 'compat=1.1', u'/rhev/data-center/mnt/glusterSD/storage.cyber-range.lan:_vmstore/dd69364b-2c02-4165-bc4b-2f2a3b7fc10d/images/6a2ce11a-deec-41e0-a726-9de6ba6d4ddd/6d738c08-0f8c-4a10-95cd-eeaa2d638db5'] failed with rc=1 out='' err=bytearray(b'qemu-img: error while reading sector 24117243: No such file or directory\\n')",) Can someone explain what this is? How do I get this cleared up/resolved?