From: MartinC on
Nick Naym wrote:

> The "Erase" tab for the _device_ or for the _volume_?

If you're doing it just for security reasons, then the volume with the
critical data will be sufficient.

If you want to force-check/reallocate all blocks then better use the device.

If the device only has one volume then it is almost the same, but volume
would not zero the small number of blocks for the partition map.

Since this *may* be the location of a bad block (if you didn't do the
hours-for-hours format yet then forget my remark about "disproving" the
theory... it is still possible now) you must zero the *entire* device.