YouTube is estimated to have 1 exabyte [1] of data. Petabyte level storage is not unheard of [2], and a gateway server with 5PB storage would cover ~0.5% of all

YouTube is estimated to have 1 exabyte [1] of data. Petabyte level storage is not unheard of [2], and a gateway server with 5PB storage would cover ~0.5% of all YouTube videos, which should be sufficient to serve a very high percentage of the most popular videos. They can still afford to serve the occasional obscure video from the origin servers. [1] https://www.qqtube.com/blog/how-much-storage-does-youtube-have https://www.qqtube.com/blog/how-much-storage-does-youtube-ha... [2] https://www.qnap.com/solution/petabyte-storage/en/ https://www.qnap.com/solution/petabyte-storage/en/