HDD GURU FORUMS

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.

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.?

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.

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.

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

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

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.

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

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

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