1 to 9 hours of downtime a year for MySQL seems on the high side. With Aura, the failover times are much less and outside of the cloud, if there's a "noc", they

1 to 9 hours of downtime a year for MySQL seems on the high side. With Aura, the failover times are much less and outside of the cloud, if there's a "noc", they can failover quicker than that.