How do social media companies like twitter or youtube not run out of space for posts?

skomposzczet@vlemmy.net to No Stupid Questions@lemmy.world – 141 points –

I know memory is fairly cheap but e.g. there are millions of new videos on youtube everyday, each probably few hundred MBs to few GBs. It all has to take enormous amount of space. Not to mention backups.

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https://engineering.fb.com/2015/05/04/core-data/under-the-hood-facebook-s-cold-storage-system/

This is an article from 2015 where Facebook/Meta was exploring Blu-ray for their DCs. You're definitely right though. Tape is key as the longest term storage.