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Kevin Tower
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Wreck Diving Class
It has been entirely too long since I have posted here; let's see about fixing that. Over the previous weekend, I took the  PADI Wreck Diver Specialty  class from  TL Sea Diving .  The vast majority of the class was spent diving a couple of wrecks up in Nan...
Wreck Diving Class
Wreck Diving Class
ktower.blogs.towerfamily.org
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Interesting details behind the start of Google-style large scale server deployments.
15 years ago we placed the largest server order in our history: 1680 servers, packed into the now infamous "corkboard" racks that packed four small motherboards onto a single tray. (You can see some preserved racks at Google in Building 43, at the Computer History Museum in Mountain View, and at the National Museum of American History in DC, http://americanhistory.si.edu/press/fact-sheets/google-corkboard-server-1999.)  

At the time of the order, we had a grand total of 112 servers so 1680 was a huge step.  But by the summer, these racks were running search for millions of users.  In retrospect the design of the racks wasn't optimized for reliability and serviceability, but given that we only had two weeks to design them, and not much money to spend, things worked out fine.

BTW the four white pins in the forefront are the reset buttons for the four servers, and the disks are mounted on a plexiglass board which lies on top of the board (not attached -- there was no time to design a proper bracket).
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Corkboard server order
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A photo sphere I took while waiting for competitors to arrive at a checkpoint during this year's No Alibi rally.
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https://www.schneier.com/blog/archives/2014/04/heartbleed.html  "Catastrophic is the right word.  On the scale of 1 to 10, this is an 11."
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