On Tue, Jul 14, 2015 at 6:21 PM, R0b0t1 r03...@gmail.com wrote:
On Sun, Jul 12, 2015 at 7:18 PM, Rich Freeman ri...@gentoo.org wrote:
I think that assumes that the two get averaged together in some way
and cannot be separated. If you could determine the orientation of
individual magnetic
On Sun, Jul 12, 2015 at 7:18 PM, Rich Freeman ri...@gentoo.org wrote:
I think that assumes that the two get averaged together in some way
and cannot be separated. If you could determine the orientation of
individual magnetic domains it is possible that you might be able to
determine which ones
Am Sun, 12 Jul 2015 22:43:44 +0200
schrieb Volker Armin Hemmann volkerar...@googlemail.com:
http://www.howtogeek.com/115573/htg-explains-why-you-only-have-to-wipe-a-disk-once-to-erase-it/
Yeah, that was linked from the Arch wiki I looked at.
On Mon, Jul 13, 2015 at 4:05 AM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
Am 12.07.2015 um 23:30 schrieb Rich Freeman:
Impossible is a pretty bold claim. You need proof, not evidence that
a particular recovery technique didn't work. I can demonstrate very
clearly that I'm
Marc Joliet mar...@gmx.de wrote:
Hi,
I have to failed drives that I want to give away for recycling purposes, but
want to be sure to properly clear them first. They used be part of a btrfs
The test patterns used on Solaris and marked with federal requirements are:
int purge_patterns[]= {
Am Mon, 13 Jul 2015 01:50:57 +
schrieb Thomas Mueller mueller6...@bellsouth.net:
All that has been said on this thread supposes that the hard drive is still
readable and writable.
But the original post stated this was a failed drive.
Then you might not be able to dd if=/dev/zero
Am Sun, 12 Jul 2015 18:32:39 +0200
schrieb Volker Armin Hemmann volkerar...@googlemail.com:
Am 12.07.2015 um 14:35 schrieb Marc Joliet:
Hi,
I have to failed drives that I want to give away for recycling purposes, but
want to be sure to properly clear them first. They used be part of a
Am 12.07.2015 um 23:30 schrieb Rich Freeman:
On Sun, Jul 12, 2015 at 5:20 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
read the second link I provided.
I did. It contains no theoretical arguments against the possibility
yes it does.
of data recovery. Theoretical limits
Am 13.07.2015 um 03:50 schrieb Thomas Mueller:
All that has been said on this thread supposes that the hard drive is still
readable and writable.
But the original post stated this was a failed drive.
Then you might not be able to dd if=/dev/zero of=/dev/sdx .. or whatever else.
You would
On Sun, Jul 12, 2015 at 10:39 AM, Marc Joliet mar...@gmx.de wrote:
Am Sun, 12 Jul 2015 08:48:48 -0400
schrieb Rich Freeman ri...@gentoo.org:
If it weren't painful to set up and complicated for rescue attempts,
I'd just use full-disk encryption with a strong key on a flash drive
or similar.
On Sun, 12 Jul 2015 15:21:41 -0400, Rich Freeman wrote:
While some kind of native support would be nice, and likely more
efficient in some ways, you could just layer btrfs on top of an
encrypted loopback device.
The problem with that approach, if you use RAID, is that all writes must
be
Am 12.07.2015 um 21:14 schrieb Rich Freeman:
On Sun, Jul 12, 2015 at 12:32 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
actually 1 time is enough. With zeros. Or ones. Does not matter at all.
That depends on your threat model.
nope. It doesn't.
You believe in some urban legend
@topic: I would strongly suggest using a hardware key that also utilizes a
passphrase. To delete, remove the key and/or don't tell anyone the
passphrase. If you need to destroy a platter drive take it apart and sand
the platters (probably the easiest). If it's solid state heat the drive
over
On Sun, Jul 12, 2015 at 4:43 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
Unlike you, I read some stuff before posting. This is OLD NEWS:
No need to be rude.
http://www.howtogeek.com/115573/htg-explains-why-you-only-have-to-wipe-a-disk-once-to-erase-it/
On Sun, Jul 12, 2015 at 12:32 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
actually 1 time is enough. With zeros. Or ones. Does not matter at all.
That depends on your threat model.
If you're concerned about somebody reading the contents of the drive
using the standard ATA
Am 12.07.2015 um 23:10 schrieb Rich Freeman:
On Sun, Jul 12, 2015 at 4:43 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
Unlike you, I read some stuff before posting. This is OLD NEWS:
No need to be rude.
On Sun, Jul 12, 2015 at 5:20 PM, Volker Armin Hemmann
volkerar...@googlemail.com wrote:
read the second link I provided.
I did. It contains no theoretical arguments against the possibility
of data recovery. Theoretical limits would be ones like the
uncertainty principle. If a given amount of
All that has been said on this thread supposes that the hard drive is still
readable and writable.
But the original post stated this was a failed drive.
Then you might not be able to dd if=/dev/zero of=/dev/sdx .. or whatever else.
You would be stopped by bad sectors.
Or a hard drive might
On Sun, Jul 12, 2015 at 6:22 PM, R0b0t1 r03...@gmail.com wrote:
But, simpler: if you combine a random stream of data with what is on the
drive, the result looks just like random data. You need only overwrite the
drive once.
I think that assumes that the two get averaged together in some way
On Sun, Jul 12, 2015 at 8:35 AM, Marc Joliet mar...@gmx.de wrote:
My question is how precisely the disks should be cleared. From various
sources
I know that overwriting them with random data a few times is enough to render
old versions of data unreadable. I'm guessing 3 times ought to be
Hi,
I have to failed drives that I want to give away for recycling purposes, but
want to be sure to properly clear them first. They used be part of a btrfs
RAID10 array, but needed to be replaced (with btrfs replace). (In the
meantime I converted the array to RAID1 with only two drives.)
My
On Sunday 12 Jul 2015 13:35:25 Marc Joliet wrote:
Hi,
I have to failed drives that I want to give away for recycling purposes,
but want to be sure to properly clear them first. They used be part of a
btrfs RAID10 array, but needed to be replaced (with btrfs replace). (In
the meantime I
Em 12/07/2015 10:03, Mick michaelkintz...@gmail.com escreveu:
On Sunday 12 Jul 2015 13:35:25 Marc Joliet wrote:
Hi,
I have to failed drives that I want to give away for recycling purposes,
but want to be sure to properly clear them first. They used be part of
a
btrfs RAID10 array, but
(Thanks to everyone for the replies so far!)
Am Sun, 12 Jul 2015 08:48:48 -0400
schrieb Rich Freeman ri...@gentoo.org:
On Sun, Jul 12, 2015 at 8:35 AM, Marc Joliet mar...@gmx.de wrote:
My question is how precisely the disks should be cleared. From various
sources
I know that
Am 12.07.2015 um 14:35 schrieb Marc Joliet:
Hi,
I have to failed drives that I want to give away for recycling purposes, but
want to be sure to properly clear them first. They used be part of a btrfs
RAID10 array, but needed to be replaced (with btrfs replace). (In the
meantime I converted
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