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by mattpallissard 1288 days ago
This was a trend for a minute back in the late 00's. Any system that was

  1.HA
  2.Had an OS that would get fully loaded into memory (think ESX).
The idea was that SD-cards take less power and where cheap enough you could have a whole gang of spares with images ready to just drop in place. I'm not saying it was a good idea, just that I've encountered this more than once.