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

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.