Simple: distribute your application across two isolated datacenters. I'm not trying to downplay the complexity of doing this, as I fully understand the amount o

Simple: distribute your application across two isolated datacenters. I'm not trying to downplay the complexity of doing this, as I fully understand the amount of effort required. If the cost of being down for an hour or two isn't significant enough to warrant this level of effort, then a power outage caused by Linode's datacenter vendor probably isn't going to really cost you much either.