The 10 Biggest Cloud Outages Of 2011

4. Major Amazon Customers Taken Out

In a brief yet impactful August cloud outage, a host of Amazon customers suffered bouts of downtime that lasted roughly 30 minutes. Several of Amazon's marquee customers, including Netflix, Quora, Reddit and Foursquare were knocked offline and took to social networks and the Web to keep customers abreast of developments. According to Amazon, the August outage was caused by connectivity issues between three of its different Availability Zones and the Internet. The outage affected Amazon Web Services Elastic Compute Cloud (EC2) and Amazon's Relational Database Service (RDS).

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