The hot backup is in the same New York datacenter, yes. We also have daily backups across the country in our original Oregon datacenter. The whole OR setup is getting love to be a much more resilient failover location as we speak (that'll be the topic of my next post). As for downtimes, pingdom says we were down 7h 6m 23s last year, so 99.92% uptime (note: not nearly all of that was DB related).