What surprises me with many of the outages from big companies is that it seems like they have a bad setup when it comes to zone redundancy. Fact is many of the

What surprises me with many of the outages from big companies is that it seems like they have a bad setup when it comes to zone redundancy. Fact is many of the smaller companies I worked with are much better at this. Facebook, Fastly, Github. How can companies like that fail at such basic concepts? Really mind boggling. There must be something fundamentally flawed in their development process.