Really appreciate the hard work on this plugin. I ran into an issue on two drives I was clearing. They both got hung up at "Zeroing 99%", been sitting there for a few hours now. I had 2 additional drives complete without issue all started around at the same time.
The last log entries I see from those two drives is below. Running Unraid 6.8.1 and Preclear Plugin 2020.01.17b
Jan 22 13:00:34 preclear_disk_R6G9R8HY_32737: Zeroing: dd output: 8000423067648 bytes (8.0 TB, 7.3 TiB) copied, 48210.5 s, 166 MB/s
Jan 22 13:00:34 preclear_disk_R6G9R8HY_32737: dd pro