backup report

I have a backup which writes nothing, but the report says it's "OK" VMID NAME STATUS TIME SIZE FILENAME 114 w1 OK 00:15:23 9.34GB /mnt/pve/nas_backup_dr/dump/vzdump-qemu-114-2016_11_12-21_00_02.vma.lzo 118 xibo OK 00:00:03 0KB...