How Long Does Write Zeros Take For A 4TB Drive?

I have a 4TB HGST drive that has been in use for a while and I want to completely clean it using write zeros. How long will that take?

@saberman

Sorry, I just saw your post. If it’s an internal drive, it could take 4-5 hours. If it’s a USB 2.0 drive, it could take 8-9 hours.

It was an internal drive. I did a complete (not quick format). I took 4 days.

Stewart Berman

Hi Stewart,

I think a complete format is different from writing zeros. And, yeah, that could take four days.