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Amazon Cloud Outage Didn't Stop

A forward-thinking continuing operations strategy allowed for seamless failover that kept the site running, despite problems with EC2.
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Careful planning kept the site online despite an outage at its cloud provider, Amazon Web Services (AWS), that began last Thursday, according to a federal official. the Recovery Accountability and Transparency Board (RATB) moved to the AWS cloud a year ago--was unaffected by the outage and remained online without incident, said Mike Wood, the executive director of RATB.

The board, created in February 2009 with the passage of the American Recovery and Reinvestment Act, is responsible for overseeing the spending of the $781 billion stimulus package, and is a transparency site that allows the public to see where the money is being spent. It was the first government-wide system to move to a cloud computing infrastructure, as well as the first to run on Amazon Elastic Compute Cloud (EC2).

Availability was a key consideration when moving to the cloud, Wood said. It was designed so if the AWS zone of cloud infrastructure that powers the site fails, its resources would automatically be shifted over to another zone.

"It's a good news story for us," he said. "It all happened seamlessly and it all worked."

Wood declined to comment which AWS data center powers for security reasons, but confirmed it is one of the U.S. locations. AWS has data centers across the United States and in Europe; the one that experienced the outage was its Northern Virginia data center.

Wood added that the Recovery Board used a combination of third-party and custom software as part of its continuing operations strategy to facilitate the resource shift in case of an outage.

According to the AWS Service Health Dashboard, the outage, which began April 21, had largely been cleared up by Monday. However, some sites using that center could still be affected by lingering performance issues, according to the dashboard.

"Public-facing" Department of Treasury websites that also use AWS, including,,, and, also remained online during the outage, according to a spokesperson from Smartronix, the contractor that worked on both the move and the Treasury cloud project.

At least one other federal website was not so lucky. The Department of Energy's site was unavailable for nearly two days, according to a report. The site allows the public to participate in clean energy research.

The EC2 outage has cloud-computing critics and skeptics raising the flag about leveraging the public cloud for mission-critical websites and other IT resources.

RATB's Wood said that while he continues to trust in cloud computing, the outage provides a good lesson for future cloud implementations.

"In theory you think of the cloud as having very good availability," he said. "But like any technology, it's not perfect and it's never going to be. The failsafe would be to put some software in place that would allow you to roll over seamlessly."

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