[kerng]

GDPR required companies to add features to append only systems to allow for true deletion (usually with something like a 30 day delay).

Not sure how many actually did that, but to be compliant append only does not fly. I was on a product that did exactly that for data lakes.

[wybiral]

I wonder how that works with Facebook's Blu-Ray cold storage [1]. Are optical disks treated like paper documents or is it still considered electronic storage?

[1] http://www.digitalpreservation.gov/meetings/documents/storag...

[kerng]

Ah, that's interesting. If they store customer data on BlueRay disks I assume Facebook took the necessary steps to delete/destroy records according to GDPR requirements when customers request deletion....