OVH outage explained
When I was at AWS we were using generators from a large commercial supplier. We were constantly having issues with them refusing to take over if there wasn't sufficient load. Doing so puts lots of stress on a generator and can significantly shorten its life.<p>We went to the manufacturer and tried to get them to make a firmware change; we wanted the generators to sacrifice themselves under most every circumstance (short of danger to humans). Generators are an irrelevant cost compared to the cost of an outage. The manufacturer refused, even when we offered to buy them without warranties.<p>I don't know if they still do but at that point AWS started to buy basically the same generators straight from China and writing their own firmware.<p>There is also a great story about an AWS authored firmware update on a set of louver microcontrollers causing a partial outage.<p>AWS really likes to own the entire stack.<p>*It has been years since I left, details are a bit fuzzy but I think I've got these right.