How does Youtube manage to store so many videos?

Question

YouTube

The question is rhetorical, of course, but still. Every second, a huge amount of data is poured into it. How many hard drives do you need for this? Especially most of the videos are 720 or even 1080p.

Answer 1

so and so

Answer 2

Youtube makes almost nothing.
The turnover is huge, but almost all the profit goes to development and maintenance.
Few official data. But for 2013 and 2014, there are figures of $3 billion and $4 billion, of which almost all went to development and maintenance, and less than 5% of this money is declared as income.
Roughly speaking, if the owner of YouTube stops developing it for a year, he will become a multi-billionaire. On the other hand, it is possible to invest more in the development of the service in a year, and next year the turnover will grow by another couple of billions. So far, there is room to grow.

Answer 3

Firstly, all the functionality of the video is stored separately, dislikes separately, thumbnails, likes, comments, and the video itself... you just can't imagine what kind of dada centers Google has... they move on wheels along the horloder along the racks....

Answer 4

Yes, bullshit is business:
1. We take all the videos in one resolution and "cut" frame by frame.
2. We search for similar frames, calculate the difference using the XOR operation and convert the deviations into a binary "tree".
3. Put down identifiers for each deviation (video and frame number).
When playing - also from the "tree" we take the changes frame by frame and form the original video clip.
(Does Google already know?!)))

Answer 5

A large number of huge data centers with hundreds of thousands of servers and, in total, millions or even tens of millions of disk drives (HDDs). This is not counting caching servers in a bunch of points in the world.

Answer 6

Well, do not forget about deduplication, the content being uploaded is not particularly unique, hamsters pour from empty to empty :)