If you’re running any kind of service hosted on Amazon Web Services, you’re likely to have heard about their recent service outage on 9/20/2015. It seems to have started around 2:30am PST and was fully resolved by 8:30am PST. As usual, an outage of this magnitude encouraged many to enlighten all of us with how we should have architected our infrastructure differently. Or you could just run in multiple regions. hn While a good idea in theory, running your service in multiple regions is far from being easy and might not make economic sense for most services.