Verified with the following code: ------------------------------------------- ovirt-engine-4.1.1-0.0.master.20170126161333.git83fd7e0.el7.centos.noarch vdsm-4.19.3-1.gitdfa4d67.el7.centos.x86_64 Verified with the following scenario: ------------------------------------------ Steps to Reproduce: 1. Create a VM with 1gb preallocated disk in a block-based domain. 2. Create a snapshot. 3. Extend the disk to 2gb. 4. Start the VM. 5. Delete the snapshot - successful Moving to VERIFIED!