Even easier, have stty status set to ^T, and run dd .
When you want to know where you are in the process hit ^T. Lots (most?)
of programs will respond to a SIGINFO request.
--STeve Andre'
On Jun 10, 2020, 12:48, at 12:48, Luke Small wrote:
>if you have access to packages, you could
if you have access to packages, you could "pkg_add pv"
and:
"dd if=/dev/random | pv | dd of=/dev/rsdXc bs=1m"
It will show you in real time how much random
data has been written to disk.
-Luke
On Wed, Jun 10, 2020 at 11:43 AM Luke Small wrote:
> I mean: "dd if=/dev/random | pv | dd
On Fri, Jun 05, 2020 at 12:49:41PM -0500, Ed Ahlsen-Girard wrote:
> On Mon, 01 Jun 2020 13:38:55 -0400
> "Eric Furman" wrote:
>
> > On Mon, Jun 1, 2020, at 10:28 AM, Paul de Weerd wrote:
> > [...]
> >
> > This is why if you are serious you use a degausser.
> >
>
> The truly serious use a
On Mon, 01 Jun 2020 13:38:55 -0400
"Eric Furman" wrote:
> On Mon, Jun 1, 2020, at 10:28 AM, Paul de Weerd wrote:
> [...]
>
> This is why if you are serious you use a degausser.
>
The truly serious use a smelter. I am not making a joke.
--
Edward Ahlsen-Girard
Ft Walton Beach, FL
On 2020-06-05, Roderick wrote:
>> I'd think that a degausser would also erase the servo tracks which will make
>> the disk irrevocably unusable. If that's what you want then just drill holes
>> through the disk - it's quicker.
>
> Or perhaps to put it on an induction cooktop?
I always keep a
On Mon, 1 Jun 2020, Eike Lantzsch wrote:
I'd think that a degausser would also erase the servo tracks which will make
the disk irrevocably unusable. If that's what you want then just drill holes
through the disk - it's quicker.
Or perhaps to put it on an induction cooktop?
On Monday, 1 June 2020 13:38:55 -04 Eric Furman wrote:
> On Mon, Jun 1, 2020, at 10:28 AM, Paul de Weerd wrote:
> > storage medium. Due to smart disks remapping your data in case of
> > 'broken' sectors, some old data can never be properly overwritten.
>
> This is why if you are serious you use a
On Fri, 5 Jun 2020, Janne Johansson wrote:
Then again, if you count how many hours it will take to securely erase a
disk, one might doubt the option of "just run this command and it will do
the same in 10 seconds".
Not 10 seconds, but there will be sure a difference if the task is done
by
Am Fr., 5. Juni 2020 um 09:21 Uhr schrieb Roderick :
> Is not there a SCSI command "sanitize" for that?
Secure erase:
https://en.wikipedia.org/wiki/Parallel_ATA#HDD_passwords_and_security
Or you encrypt your device and throw away the key.
Best
Martin
Den fre 5 juni 2020 kl 09:23 skrev Roderick :
> Is not there a SCSI command "sanitize" for that?
> Can be issued with OpenBSD?
> Perhaps his disc supports it.
>
Then again, if you count how many hours it will take to securely erase a
disk, one might doubt the option of "just run this command and
Is not there a SCSI command "sanitize" for that?
Can be issued with OpenBSD?
Perhaps his disc supports it.
Rod.
On Thu, Jun 04, 2020 at 08:39:24PM -0700, Justin Noor wrote:
> Thanks you @misc.
>
> Using dd with a large block size will likely be the course of action.
>
> I really need to refresh my memory on this stuff. This is not something we
> do, or need to do, everyday.
>
> Paul your example shows:
Hi Justin,
On Thu, Jun 04, 2020 at 08:39:24PM -0700, Justin Noor wrote:
| Thanks you @misc.
|
| Using dd with a large block size will likely be the course of action.
|
| I really need to refresh my memory on this stuff. This is not something we
| do, or need to do, everyday.
|
| Paul your
Thanks you @misc.
Using dd with a large block size will likely be the course of action.
I really need to refresh my memory on this stuff. This is not something we
do, or need to do, everyday.
Paul your example shows:
bs=1048576
How did you choose that number? Could you have gone even bigger?
On 2020-06-01 06:58, Justin Noor wrote:
Hi Misc,
Has anyone ever filled a 4TB disk with random data and/or zeros with
OpenBSD?
How long did it take? What did you use (dd, openssl)? Can you share the
command that you used?
Thank you so much
I've used OpenBSD to overwrite up to 8TB disks.
or if a degausser isn't available use 7.62 x 51
sorry, couldn't help myself
On Mon, Jun 1, 2020 at 11:41 AM Eric Furman wrote:
>
> On Mon, Jun 1, 2020, at 10:28 AM, Paul de Weerd wrote:
> > storage medium. Due to smart disks remapping your data in case of
> > 'broken' sectors, some old data
On Mon, Jun 1, 2020, at 10:28 AM, Paul de Weerd wrote:
> storage medium. Due to smart disks remapping your data in case of
> 'broken' sectors, some old data can never be properly overwritten.
This is why if you are serious you use a degausser.
On Mon, 1 Jun 2020 14:33:44 - (UTC), Christian Weisgerber
wrote:
> Take care to pick the proper device corresponding to the drive you
> want to overwrite.
Don't make people miss a good opportunity to test their backups!
On 2020-06-01, Justin Noor wrote:
> Has anyone ever filled a 4TB disk with random data and/or zeros with
> OpenBSD?
Yes.
> How long did it take?
I don't remember. Hours.
At a plausible 100 MB/s write speed it will take 11 hours.
> What did you use (dd, openssl)? Can you share the command
On Mon, Jun 01, 2020 at 06:58:01AM -0700, Justin Noor wrote:
| Hi Misc,
|
| Has anyone ever filled a 4TB disk with random data and/or zeros with
| OpenBSD?
I do this before disposing of old disks. Have written random data to
several sizes of disk, not sure if I ever wiped a 4TB disk.
| How
Den mån 1 juni 2020 kl 16:01 skrev Justin Noor :
> Hi Misc,
> Has anyone ever filled a 4TB disk with random data and/or zeros with
> OpenBSD?
> How long did it take? What did you use (dd, openssl)? Can you share the
> command that you used?
>
My /dev/random on decent x86_64 give out more or less
The speed of writing is dependent on the rotational speed of the disk, and the
i/o bandwidth of the system.
You want to do
dd if=/dev/zero of=/dev/rsd1c bs=1m
Note that this writes to the sd1 disk! Carefully,
carefully look at your disks and write to the correct
one. Writing to sd0 is
Hi Misc,
Has anyone ever filled a 4TB disk with random data and/or zeros with
OpenBSD?
How long did it take? What did you use (dd, openssl)? Can you share the
command that you used?
Thank you so much
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