QA output created by 278 Format and mount Create the original files Compare files 1886e67cf8783e89ce6ddc5bb09a3944 SCRATCH_MNT/test-278/file1 1886e67cf8783e89ce6ddc5bb09a3944 SCRATCH_MNT/test-278/file2 CoW and unmount Rewrite Compare files 1886e67cf8783e89ce6ddc5bb09a3944 SCRATCH_MNT/test-278/file1 Check for damage