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CompactFlash, SD, MMC, USB flash storage. Anything that does not have moving parts inside.
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SSD eraser question

December 8th, 2024, 8:13

Hi
I have got a work of secure eraser work of 100 odd ssd's
Unlike CMR hard disks there is no chances of remnant data recovery on defect lists with SSD.
I would like to know is it technically ok to single pass overwrite., so that I can quote for the same.
Thank you.

Re: SSD eraser question

December 8th, 2024, 8:43

Single pass overwrite potentially leaves you with overprovisioned space. Writing zeros potentially leaves you with lots of unaffected data due to advanced firmware detecting zeros and simply add place-holders in FTL. Zero filling overwriting virtually nothing due to firmware level compression. Why not use built-in secure erase, crypto erase etc.?

Re: SSD eraser question

December 8th, 2024, 11:17

Arch Stanton wrote:Single pass overwrite potentially leaves you with overprovisioned space. Writing zeros potentially leaves you with lots of unaffected data due to advanced firmware detecting zeros and simply add place-holders in FTL. Zero filling overwriting virtually nothing due to firmware level compression. Why not use built-in secure erase, crypto erase etc.?

Thanks a lot Joep
Do I need third party tools or manufacturer utility
to initiate secure eraser.
Cusomer wants reports of each eraser like model, fw, sn, erasing date / time
Technique used and time required etc.

Re: SSD eraser question

December 8th, 2024, 15:44

Maybe a tool like KillDisk will make your life easier but I personally believe your client wants to purchase peace of mind with that certificate.

Re: SSD eraser question

December 12th, 2024, 1:06

Arch Stanton wrote:Maybe a tool like KillDisk will make your life easier but I personally believe your client wants to purchase peace of mind with that certificate.


Exactly ,even client suggested this.
Is there any universal secure /crypto erase tool irrespective of make of SSD ? For large volume of disks its not practical to check each ssd & erase it using manufacturer supplied tools (not all tools are self bootable as well)
Thanks

Re: SSD eraser question

December 12th, 2024, 1:33

IIRC, the ATA standard has sanitize and cryptoerase commands. These are universal, ie not vendor specific.

Re: SSD eraser question

December 14th, 2024, 6:50

fzabkar wrote:IIRC, the ATA standard has sanitize and cryptoerase commands. These are universal, ie not vendor specific.


Thanks a lot fzabkar , I have used killdisk as I think its too clumsy to boot large (different types ) of laptops using linux & issue commands onsite.
There should be a readymade live bootable pen drive having interface , logging to perform the same. Besides that I read that not all models support secure erase.

Re: SSD eraser question

December 17th, 2024, 2:53

athena wrote:
fzabkar wrote:IIRC, the ATA standard has sanitize and cryptoerase commands. These are universal, ie not vendor specific.


Thanks a lot fzabkar , I have used killdisk as I think its too clumsy to boot large (different types ) of laptops using linux & issue commands onsite.
There should be a readymade live bootable pen drive having interface , logging to perform the same. Besides that I read that not all models support secure erase.


Well,
Older versions of killdisk was able to work with several hard drives without a license

Re: SSD eraser question

December 17th, 2024, 10:56

Amarbir[CDR-Labs] wrote:
athena wrote:
fzabkar wrote:IIRC, the ATA standard has sanitize and cryptoerase commands. These are universal, ie not vendor specific.


Thanks a lot fzabkar , I have used killdisk as I think its too clumsy to boot large (different types ) of laptops using linux & issue commands onsite.
There should be a readymade live bootable pen drive having interface , logging to perform the same. Besides that I read that not all models support secure erase.


Well,
Older versions of killdisk was able to work with several hard drives without a license

Thanks do you know any commercial software solution which implements secure eraser

Re: SSD eraser question

December 17th, 2024, 11:49

athena wrote:
Amarbir[CDR-Labs] wrote:
athena wrote:
fzabkar wrote:IIRC, the ATA standard has sanitize and cryptoerase commands. These are universal, ie not vendor specific.


Thanks a lot fzabkar , I have used killdisk as I think its too clumsy to boot large (different types ) of laptops using linux & issue commands onsite.
There should be a readymade live bootable pen drive having interface , logging to perform the same. Besides that I read that not all models support secure erase.


Well,
Older versions of killdisk was able to work with several hard drives without a license

Thanks do you know any commercial software solution which implements secure eraser


Well,
i use only killdisk ver 10.2.7 and thats about it i also have a commercial Cyber forensic tool hardware that i use just for erasing
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