similar to: Utility to zero unused blocks on disk

On 09/02/16 12:08 AM, g wrote: > > > On 02/08/16 15:34, Wes James wrote: >> Is there a utility to zero unused blocks on a disk? >> >> CentOS 6.7/Ext4 >> >> I saw zerofree, but I?m not sure it would work on Ext4 or even work on >> this version of CentOS. >> >> thanks, >> > . > a comment on replies to your post. > > i find

DBAN is obsolete. NIST 800-88 for some time now says to use secure erase or enhanced security erase or crypto erase if supported. Other options do not erase data in remapped sectors. Chris Murphy

On 09/02/16 12:24 AM, g wrote: > > > On 02/08/16 23:10, Digimer wrote: >> On 09/02/16 12:08 AM, g wrote: >>> >>> >>> On 02/08/16 15:34, Wes James wrote: >>>> Is there a utility to zero unused blocks on a disk? >>>> >>>> CentOS 6.7/Ext4 >>>> >>>> I saw zerofree, but I?m not sure it would work on

On Mon, 2016-02-08 at 14:22 -0800, John R Pierce wrote: > the only truly safe way to destroy data on magnetic media is to grind > the media up into filings or melt it down in a furnace. I unscrew the casing, extract the disk platter(s), slide a very strong magnet over both sides of the platter surface then bend the platter in half. How secure is that ? I can't afford a machine that

Good evening from Singapore! The foremost question which I want to ask is, what is the universal (world wide) understanding behind degaussing hard drives? I work for No Secrets Agency (NSA) Pte Ltd (fictitious company name used). My sales manager Edward Joseph Snowden (fictitious individual name used) had *promised* our customer Leave Me in the Lurch (S) Pte Ltd (fictitious company name used)

Hello, On Mon, 2 Apr 2018 10:01:56 -0400 m.roth at 5-cent.us wrote: > Turritopsis Dohrnii Teo En Ming wrote: > > Good evening from Singapore! > > > > The foremost question which I want to ask is, what is the universal > > (world wide) understanding behind degaussing hard drives? > > > > I work for No Secrets Agency (NSA) Pte Ltd (fictitious company name

On 02/08/16 23:10, Digimer wrote: > On 09/02/16 12:08 AM, g wrote: >> >> >> On 02/08/16 15:34, Wes James wrote: >>> Is there a utility to zero unused blocks on a disk? >>> >>> CentOS 6.7/Ext4 >>> >>> I saw zerofree, but I?m not sure it would work on Ext4 or even work on >>> this version of CentOS. >>> >>>

> -----Original Message----- > From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On > Behalf Of EGO-II.1 > Sent: den 9 februari 2016 09:00 > To: CentOS mailing list > Subject: Re: [CentOS] Utility to zero unused blocks on disk > > > > >> the only truly safe way to destroy data on magnetic media is to grind > >> the media up into

On Mon, Apr 02, 2018 at 05:29:13PM +0100, Phil Dobbin wrote: > On 02/04/18 15:09, wwp wrote: > > > Hello, > > > > > > On Mon, 2 Apr 2018 10:01:56 -0400 m.roth at 5-cent.us wrote: > > > >> Turritopsis Dohrnii Teo En Ming wrote: > >>> Good evening from Singapore! > >>> > >>> The foremost question which I want to ask

> I'm guessing you're using standard 7,200rpm platter drives? You'll need > to share more information about your environment in order for us to > provide useful feedback. Usually though, the answer is 'caching' and/or > 'faster disks'. Yes , 7.2k rpm disks. 2T mirror (soft). In fact, I had such a preference for slightly more capacity. Unfortunately very

On 02/08/16 15:34, Wes James wrote: > Is there a utility to zero unused blocks on a disk? > > CentOS 6.7/Ext4 > > I saw zerofree, but I?m not sure it would work on Ext4 or even work on > this version of CentOS. > > thanks, > . a comment on replies to your post. i find it interesting that "Subject:" is and you ask for info to *zero unused blocks on disk*

> If you run top what are you seeing on the %Cpu(s) line? %20 On Mon, Feb 8, 2016 at 9:30 PM, Alvin Starr <alvin at netvel.net> wrote: > Slow disks will show up as higher I/Owait times. > If your seeing 99% cpu usage then your likely looking at some other problem. > > If you run top what are you seeing on the %Cpu(s) line? > > > On 02/08/2016 02:20 PM, Gokan Atmaca

Hello I use KVM. In a virtual machine "jbd2 dm-0" disk I / O is very increases. It consumes up to 99%. For this reason, slowing down the other virtual machine. What should I do to solve the problem. ? Thanks..

I?ve been trying to get the dd of an iso to a usb flash drive to work for CentOS 6.7. It is working with the CentOS 7 DVD1 iso (x64), but if I use the same process with 6.7 bin dvd1 iso or the 6.7 live dvd, the flash drive will not boot. I thought 6.x and forward could be done like this. -wes

James Szinger wrote: > Disclaimer: My $dayjob is with a government contractor, but I am speaking > as private citizen. > > Talk to your organization's computer security people. They will have a > standard procedure for getting rid of dead disks. We on the internet > can't > know what they are. I'm betting it involves some degree of paperwork. > > Around

We are at the stage, finally, where we are prepared to deploy public facing VM guests. Now we have to answer these questions: How many guests in total should we contemplate and what services are placed on which guests? My question comes down to whether it is considered advisable to run the primary DNS and IMAP, or indeed all services, on separate vm guests; or should we continue, more or less,

Hi, I have a dozen of drives, ranging from 10Gb to 200Gb. I want to wipe them clean before donating them. I have a IDE/SATA to USB converter that works. I can see the drives properly. DBAN does not currently support external USB drive. Any other alternatives? -- Thanks http://www.911networks.com When the network has to work

On 02/08/2016 03:05 PM, m.roth at 5-cent.us wrote: > Wes James wrote: >> Is there a utility to zero unused blocks on a disk? >> >> CentOS 6.7/Ext4 >> >> I saw zerofree, but I?m not sure it would work on Ext4 or even work on >> this version of CentOS. >> > I don't understand the point of doing this. Wes didn't say the reason he wanted to zero

> Date: Thursday, March 24, 2016 14:10:41 +0000 > From: Always Learning <centos at u64.u22.net> > > On Wed, 2016-03-23 at 22:29 -0700, Alice Wonder wrote: > >> What purpose does it serve? I don't object to it being there >> but I also don't see a benefit to it being there. >> >> Ubuntu btw is not exactly a distribution I want

Wes James wrote: > Is there a utility to zero unused blocks on a disk? > > CentOS 6.7/Ext4 > > I saw zerofree, but I?m not sure it would work on Ext4 or even work on > this version of CentOS. > I don't understand the point of doing this. If you want to sanitize the disk, use dban <dban.org>, which surely approaches industry standard for the open source answer. Just