big data factor. true scale of youtube
youtube HaZlvVb45ol
youtube.com/watch?v=aUsK3yCbi8w

pikabu.ru/story/naskolko_velik_youtube_4746735
quora.com/How-much-storage-is-YouTube-now-using
quora.com/What-is-the-size-of-the-data-centers-the-YouTube-videos-are-stored-in
