That doesn't mean they're unavailable for 20 minutes weekly, probably because of the nature of AWS's multi-AZ RDS setup. At our shop, we haven't had any proble

That doesn't mean they're unavailable for 20 minutes weekly, probably because of the nature of AWS's multi-AZ RDS setup. At our shop, we haven't had any problems with RDS maintenance at all -- and we would indeed get paged for even 1 minute of database downtime, much less 20 (!). That said, we don't have that sort of monitoring in place for any of the test/staging DBs (which are not multi-AZ).