Yep, and you don't even (necessarily) need to double your infrastructure to do it. Jeff Dean talks about some strategies in "The Tail at Scale" http://researc

Yep, and you don't even (necessarily) need to double your infrastructure to do it. Jeff Dean talks about some strategies in "The Tail at Scale" http://research.google.com/pubs/pub40801.html http://research.google.com/pubs/pub40801.html (paper) http://www.youtube.com/watch?v=C_PxVdQmfpk http://www.youtube.com/watch?v=C_PxVdQmfpk (talk)