For a long time, Facebook has refused to be more specific than “more than 10,000” when it came to the question of how many servers it had running its website. Jeff Rothschild has now issued a more specific number, 30,000 with more servers being added daily, in his presentation at UC San Diego last week. Rothschild also revealed that Facebook stores 20 billion unique images, each in four sizes and that it serves 600,000 images per second.
Rothschild also mentioned that Facebook’s logged data accounts for 25 terabytes of data per day. He also said that Facebook now has 230 engineers, which means that there is one engineer per 1 million+ users.
The presentation can be viewed at http://video-jsoe.ucsd.edu/asx/JeffRothschildFacebook.asx.
[via Data Center Knowledge, Image from flickr.com/photos/clayirving]
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