How to Survive a Cloud Outage

Amazon’s infamous cloud outage in April brought down a number of popular Web sites, including foursquare and Reddit – but many of Amazon’s enterprise cloud customers were able to weather the storm without experiencing downtime.

They architected their systems for resiliency by using multiple availability zones, having hot backups in traditional data centers, or having a backup cloud provider set up and ready to go in case of a problem.

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