How does Google have so much memory?

Question

Google

Good afternoon, what servers should Google have to store so much information?
There is YouTube, in general, almost the entire Internet is on their servers.
I'm afraid to imagine what the numbers are there.
I wonder just what types of memory there are)

Answer 1

In short, built. They have hundreds of data centers around the world, including caching proxies for YouTube videos. Inside are almost ordinary pieces of iron with tons of hard drives and SSDs. There are just a lot of them.

Answer 2

lmgtfy.com/?q=%D0%B3%D0%B4%D0%B5+google+%D1%85%D1%...

Answer 3

the index of the entire Internet and "the entire Internet" is not the same thing. their storage volume is undoubtedly large, but significantly less than the "whole Internet"
Google index size of approximately 100 Petabytes in 2016. Now it has probably grown by about 10 percent somewhere. Let's
add here a bunch of personal information from their services, well, let's say another 20 percent of this volume.
The volume of the entire Internet, according to rough estimates by researchers from Cisco (the largest office for the production of network equipment) is somewhere in the region of 1.2 Zettabytes at the moment, which is about 10,000 times more than the size of the Google index.
If desired, you can place 200 Petabytes of data even in one DC.
A more interesting question is how do they ensure the speed of access to such a volume of data (I can only present in general terms)

Answer 4

Here read https://www.insight-it.ru/highload/2011/arkhitektu...

Answer 5

www.artificialbrains.com/google/datacenters
Count how much is there in total? Clearly over 1.5 million. What do you think, how much total memory on them?
If Gulga invented anything, it's horizontal scaling tools like Google File System and much more. So that if anything, it was possible to install a dozen more servers. And then a hundred more. And then a thousand more.
And the amount of memory is no longer such a big problem. The problem is getting it to work together and sync what needs to be synced. The minds of engineers will definitely cost more than pieces of iron.

Answer 6

There are already models for ten terabytes now.