[sofuture]

The only bump in service we had was ~30s of downtime when our multi-AZ RDS cut over to the failover instance. :) I think we lucked out a little bit...

[mrcalzone]

My multi-AZ RDS also failed over without a problem. The site was down for 5 minutes though, perhaps due to ELB problems.

[jc4p]

Were you in us-east-1? That sounds amazingly lucky. If only Amazon would tell us how many AZs actually went down...

[blagospot]

Does 1 AZ == 1 datacenter? It seems like it's possible 5 distinct "AZs" could have gone down while someone else escaped with all 4 of their AZs unscathed, since Amazon takes care to talk about availability zones rather than datacenters, and my AZs by definition aren't the same as your AZs.