Hacker News new | ask | show | jobs
by Johnny555 1429 days ago
Are you sure you understand their uptime claims? They offer a 99.99% SLA for regional availability, but only 99.5% for individual instances (and even then, they only owe you a 10% service credit for affected instances)

https://aws.amazon.com/compute/sla/

99.5% availability allows up to about 3 and a half hours of downtime a month. 99.99% means around 4 minutes a month. So if you can't handle hours of downtime, you should definitely be multi-AZ.