> In this case, the game isn't "going down less than Amazon", it's about going down uncorrelated to Amazon. It's possible to go down in a mostly uncorrelated w

> In this case, the game isn't "going down less than Amazon", it's about going down uncorrelated to Amazon. It's possible to go down in a mostly uncorrelated way to Amazon by just being down all the time. Obviously this is implicit in your comment, but I'll say it anyway: your backups need to actually work when you need them. You need to test them (really test them) to make sure they're not secretly non-functional in some subtle way when Amazon is really down.