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We were hit by it over the weekend, and because of our failsafes, our customers didn't notice a thing. Stuff happens. It's our job to prepare for these things as well.

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Exactly. The benefits of the cloud allow you almost unlimited computing resources spread across enormous swaths of geography, power, and internet access.

Therefore, if you were impacted, its your fault, not AWS. Sorry.

* If it's within your SLA

I don’t understand this statement. If your application is developed with fault tolerance, this is independent of any SLA.

Curious to know what kind of failsafes you have in place so your customers were not impacted?

I'm not the original commenter but for an EC2 hosted application, any architecture that uses a VPC with proper cross-AZ subnetting and a load balancer would not have been impacted. EBS snapshots would minimize any data loss.

probably multi-az, multi-tier, stateless apps

https://12factor.net/ can help guide

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