Even so, .5% downtime per year is about 44 hours, and Reddit's definitely had more downtime in the last few months than that. Of course, that's assuming that 1

Even so, .5% downtime per year is about 44 hours, and Reddit's definitely had more downtime in the last few months than that. Of course, that's assuming that 100% of Reddit's problems were due to EBS only and not a combination of EBS, EC2 and their own code.