Clearing the unallocated disk space

[Roger Heflin]

Depending on who makes the drive, the manufacturer's diag tool will
generally have something that will secure erase all of the drive
assuming the drive is still working enough.

I know last time I used the seagate diag tool it on the menu.


On Sun, Nov 16, 2014 at 1:17 PM, jd1008 <jd1008 at gmail.com> wrote:
>
> On 11/16/2014 12:09 PM, Tom Horsley wrote:
>>
>> On Sun, 16 Nov 2014 12:04:31 -0700
>> jd1008 wrote:
>>
>>> Before sending the drive for warranty service, what is the best way to
>>> clean the unallocated blocks?
>>
>> A way is to run as root "cp /dev/zero tempfile" for one "tempfile" per
>> partition
>> until the cp fails due to running out of disk space. That will allocate
>> all
>> free space and write zeroes to it.
>
> I had read somewhere that THAT is not enough.
> I recall that in fc12 there was a util that would scavenge all
> free space (albeit, in manageable chunks at a time), then
> clean them using several different method.
> I am unable to recall that util's name :(
>
>
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