QA output created by 225
Performing full device TRIM /dev/mapper/vg0-lv8 (10.00GiB) ...
--- before delete ----
0000000 abab abab abab abab abab abab abab abab
*
4000000
0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
*
4000000
--- after delete ----
0000000 abab abab abab abab abab abab abab abab
*
4000000
0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
*
4000000