How Google Works

Fact and not

The magic that makes Google tick

• Over four billion Web pages, each an average of 10KB, all fully indexed
  
• Up to 2,000 PCs in a cluster
  
• Over 30 clusters
  
• 104 interface languages including Klingon and Tagalog
  
• One petabyte of data in a cluster - so much that hard disk error rates of 10-15 begin to be a real issue
  
• Sustained transfer rates of 2Gbps in a cluster
  
• An expectation that two machines will fail every day in each of the larger clusters
  
• No complete system failure since February 2000

Stanford University: The Anatomy of a Large-Scale Hypertextual Web Search Engine  

Sergey Brin and Lawrence Page Google.com:
How Google Works
 
How Stuff/Google Works

The Economist: Case History
 
Or
 

It's all done with pigeons


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