Wipe equivelent for Freenas?

[avalon60]

I am not sure how I would word the subject but I have 2 x1TB WD Green drives mirrored., and I want to wipe all the data from them while they are still attached to board.

I did not have much data on them anyway and backed up what I want to keep.
I have the remnants of a plugin there as well and having tried to rm -rf the plugin files, but don't have permission , so I thought if I could do the equivelent of wiping or formatting the mirrored drives

I can see that they can be detached from detach volume, but don't want to do that if I don't have to.
I am guessing that it probably wouldn't let me do what I want anyway, or would it?

 

[cyberjock]

The best way to make the drives basically blank is to detach the volume and check the box that says "mark disks as new".

 

[avalon60]

Yes, thanks, I thought it would be that, and that's what I've done. Just putting the data back onto the mirrored volume dataset now