How Facebook Stores Billions of Photos 154
David Gobaud writes "Jason Sobel, the manager of infrastructure engineering at Facebook, gave an interesting presentation titled Needle in a Haystack:
Efficient Storage of Billions of Photos at Stanford for the Stanford ACM. Jason explains how Facebook efficiently stores ~6.5 billion images, in 4 or 5 sizes each, totaling ~30 billion files, and a total of 540 TB and serving 475,000 images per second at peak. The presentation is now online here in the form of a Flowgram."