quick links to older stuff
http://dmerr.tumblr.com/post/12004195663/data-centers-are-too-reliable-sort-of
http://web-ops.tumblr.com/post/5042205512/ebs-durability
http://dmerr.tumblr.com/post/969635747/optimizing-your-air-quality
http://dmerr.tumblr.com/post/510951515/chain-replication-is-interesting
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