How to wipe a Black2?

OK I used the wd datalifeguard software, wrote zeros (the slow opion) and it failed the test at an unknown sector, I didn’t write it down, and the the 1tb partition remains. I cloned my drive to it anyway and the laptop only sees the 1tb and not the 120gb SSD so it won’t boot unless I force it using the laptop’s boot up options (F12).

Does this failure mean the drive is bad? Or does it just mean data lifeguard can’t do the job or am I doing it wrong?

EDIT:
I did find a post [HERE][1] with a solution to this issue.
[1]: Issue after formatting Black2 - #14 by amlnn