Hello Christopher,

On Fri, Jul 27, 2018 at 12:00 AM, Christopher Kunz
<chrisl...@de-punkt.de> wrote:
> Hello all,
>
> as part of deprovisioning customers, we regularly have the task of
> wiping their Ceph clusters. Is there a certifiable, GDPR compliant way
> to do so without physically shredding the disks?

This should work and should be as fast as it can be:

wipefs -a /dev/sdX
shred /dev/sdX

Whether or not that's "GDPR compliant" will depend on external
certification, I guess.

(The issues might be that you can't guarantee all blocks in an SSD/HDD
are actually erased because the device firmware may retire bad blocks
and make them inaccessible. It may not be possible for the device to
physically destroy those blocks either even with SMART directives. You
may be stuck with an industrial shredder to be compliant if the rules
are stringent.)

-- 
Patrick Donnelly
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